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A pragmatic mix of code, automation, data and infrastructure, with equal respect for running shoes, good food and getting outdoors.
The logo for the Massive proxy service.

Massive Browser API

proxyweb scraping
17 Jun 2026 12:00
A room with a potted plant, a picture on the wall and a rug on the floor. The wall is empty where a bookcase could be.

Static and Dynamic Websites

Where does the HTML come from?
web scraping
1 Jun 2026 12:00
The logo for the Byteful proxy service.

Byteful Residential Proxies

proxyweb scraping
22 May 2026 12:00
Llama astronaut interacting with Ollama Cloud.

Ollama Cloud

Local Workflow, Remote Model
OllamaLLM
10 May 2026 12:00
The logo for the Geonode proxy service.

Geonode Proxies

proxyweb scrapingPython
9 May 2026 12:00

Quick and Dirty Ollama on EC2

AWSOllamaLLM
6 May 2026 12:00
Llama astronaut mapping the Ollama model universe.

Atlas of the Ollama Universe

OllamaLLM
2 May 2026 12:00
The logo for the Massive proxy service.

Massive ASN Targeting

proxyweb scraping
27 Apr 2026 12:00
The logo for the Massive proxy service.

Massive Geotargeting

proxyweb scraping
25 Apr 2026 12:00
The logo for the Massive proxy service.

Massive Proxies

proxyweb scrapingPython
18 Apr 2026 12:00
The Google Chrome logo on a blue background.

What’s New in Chrome 144?

browserweb scrapingChrome
31 Jan 2026 12:00
The Firefox logo on an orange gradient background.

What’s New in Firefox 147?

Firefoxbrowserweb scraping
24 Jan 2026 12:00
The Firefox logo on an orange gradient background.

What’s New in Firefox 146?

Firefoxbrowserweb scraping
10 Dec 2025 12:00
The Google Chrome logo on a blue background.

What’s New in Chrome 143?

browserweb scrapingChrome
5 Dec 2025 12:00
The Camoufox logo with a stylised fox head above the word Camoufox.

Camoufox without a Context Manager

PlaywrightCamoufox
2 Dec 2025 12:00
The Tor logo with a stylised onion on a dark purple background.

Installing Tor Browser on Ubuntu

TorUbuntu
1 Dec 2025 12:00
The Firefox logo on an orange gradient background.

What’s New in Firefox 145?

Firefoxweb scraping
22 Nov 2025 12:00
A crowded street market with stalls and shoppers in an old town.

Evaluating a New Job Market Data Feed

RPython
10 Nov 2025 12:00
A blurred spreadsheet overlaid with the Microsoft SharePoint logo.

Downloading from SharePoint

web scraping
25 Oct 2025 12:00
A black pot of vegetable soup on a wooden table.

Accelerating BeautifulSoup Encoding Detection

web scrapingPython
18 Oct 2025 12:00
A Canadian lynx sitting alert on a forest floor.

Cycles in Lynx Numbers

R
16 Oct 2025 12:00
 

What’s happening on the Framebuffer?

13 Jul 2025 12:00
 

Camoufox in Docker

DockerCamoufox
11 Jun 2025 12:00
An elephant footprint in muddy ground with footprints of smaller animals.

Playwright Browser Footprint

Playwrightweb scraping
6 Jun 2025 12:00
An image of three kayak paddlers in triangle formation viewed from in front of the foremost paddler.

Hasler Statistics

kayakR
5 May 2025 12:00
A plate of round cookies on a floral blue tablecloth.

Get Cookies from Chrome or Firefox

SeleniumPlaywrightcookiesweb scraping
3 May 2025 12:00
A surreal, headless man in a bowler hat and white coat against a cloudy landscape.

Headless Browser Hacks

SeleniumPlaywrightweb scrapingframebufferanti-bot
2 May 2025 12:00
The front desk in a stylish hotel. There's a lamp and a vase of yellow flowers.

Webshare Proxies

proxyweb scraping
3 Apr 2025 12:00
A crash test dummy sitting at a computer in a cosy study.

Test a Playwright Web Scraper

web scrapingtestingPlaywright
2 Apr 2025 12:00
A crash test dummy sitting at a computer in a cosy study.

Test a Selenium Web Scraper

web scrapingtestingSelenium
31 Mar 2025 12:00
A grader working on a construction site.

Iterating over a Paginated List of Links

web scraping
25 Feb 2025 12:00
A robot hand using a paint scraper to remove paint from a wall.

Handling HTML Entities and Unicode

web scrapingHTMLUnicode
8 Feb 2025 12:00
A robot hand using a paint scraper to remove paint from a wall.

Scraping JSON-LD Data

web scraping
7 Feb 2025 12:00
A crash test dummy sitting at a computer in a cosy study.

Test a Web Scraper using Patching

web scrapingtestingpytest
30 Jan 2025 12:00
A crash test dummy sitting at a computer in a cosy study.

Test a Web Scraper using Mocking

web scrapingtestingpytest
29 Jan 2025 12:00
A crash test dummy sitting at a computer in a cosy study.

Test a Web Scraper using VCR

web scrapingtesting
28 Jan 2025 12:00
A crash test dummy sitting at a computer in a cosy study.

Test a Web Scraper using Responses

web scrapingtesting
27 Jan 2025 12:00
A crash test dummy sitting at a computer in a cosy study.

Web Scraper Testing

web scrapingtesting
26 Jan 2025 12:00
A robot hand using a paint scraper to remove flaking paint from a wall.

Zyte API Sessions

web scrapingZyte
25 Jan 2025 12:00
A robot hand using an electric scraper on a peeling wall, with a plate of biscuits on the floor nearby.

Zyte API Cookie Management

web scrapingcookiesZyte
22 Jan 2025 12:00
A robot hand using a paint scraper to remove paint from a wall.

Web Scraping with the Zyte API

web scrapingZyte
14 Jan 2025 12:00
 

Installing CPLEX

optimisation
11 Dec 2024 12:00
 

Installing MOSEK

optimisation
11 Dec 2024 12:00
A concrete water tank in dry scrubland near a stone farmhouse and large trees.

Optimisation with Pyomo

optimisationPython
10 Dec 2024 12:00
A concrete water tank and wind pump in arid scrubland with sheep and quiver trees.

Optimisation with CVXPY

optimisationPython
9 Dec 2024 12:00
A concrete water tank and wind pump surrounded by arid scenery and Quiver Trees typical of the Karoo.

Optimisation with SciPy

optimisationPython
8 Dec 2024 12:00
 

Global versus Sequential Optimisation

optimisation
7 Dec 2024 12:00
A concrete water tank surrounded by arid scenery typical of the Karoo.

Optimisation Reference Problem

optimisation
6 Dec 2024 12:00
A gloved hand holding a paint scraper that is being used to scrape flakey cream coloured paint off a wall.

Scraping and Not Modified Responses

web scrapingPython
3 Dec 2024 12:00
A reception desk at a modern hotel.

NetNut Proxies

proxy
12 Nov 2024 12:00
A reception desk at an old world hotel.

What is a Proxy?

proxy
11 Nov 2024 12:00
A bird with a white body and dark cap against a sky with scattered clouds.

Migrating from GitLab Pages to Vercel

Vercel{blogdown}GitLab
10 Nov 2024 12:00
A composite image including elements of financial charts, flags, Wall Street and the NYSE.

Scraping the NYSE Composite Index

web scrapingtradingR
25 Oct 2024 12:00
A banner image featuring the Alpaca logo and the name of the {alpacar} R package.

Asset Price Data

{alpacar}R
24 Oct 2024 12:00
A banner image featuring the Alpaca logo and the name of the {alpacar} R package.

Listing Alpaca Assets

{alpacar}R
21 Oct 2024 12:00
A banner image featuring the Alpaca logo and the name of the {alpacar} R package.

Alpaca API Authentication

trading{alpacar}R
13 Oct 2024 12:00
An abstract image with charts and symbols with an overall economic or financial theme.

Earnings Calendar

BASHweb scrapingrequeststradingPython
12 Oct 2024 12:00
An image of a computer on a wooden desk. On either side of the computer is a table lamp. The computer screen has an image of two cows.

Caching & Avoiding Duplication

web scrapingrequestsPython
10 Oct 2024 12:00
A picture in a style similar to that of Constable depicting cargo being offloaded from a sailing ship.

Downloading Files with Selenium

web scrapingSeleniumPython
5 Oct 2024 12:00
An abstract image with charts and symbols with an overall economic or financial theme.

Economic Calendar

web scrapingPlaywrighttradingPythonR
2 Oct 2024 12:00
An hourglass in a landscape imitating style of Paul Cézanne.

Your Life in Weeks

{ggplot2}R
13 Aug 2024 12:00
An image of blue sky with clouds.

Bypassing Cloudflare with Cloudscraper

web scrapingCloudflarePython
20 Jul 2024 12:00
An abstract pattern, reminiscent of Paisley.

Unpacking cURL Commands

RPython
10 Jul 2024 12:00
Title image for the Big Book of R.

Updates to the Big Book of R

QuartoR
26 Jun 2024 12:00

Thunderbird displaying an email and its reply grouped into a single thread.

{emayili} Creating Email Threads

{emayili}R
22 Jun 2024 12:00
A teal graphic reading openai-python 1.33.0 is here!

Release: openai-python 1.33.0

LLMPython
8 Jun 2024 12:00
A helicopter lowering a whale into the ocean.

Installing Docker

DockerLinuxUbuntu
5 Jun 2024 12:00

An embedded Google map of the United States with many physician location markers.

Locations from Google Map

web scrapingPython
26 May 2024 12:00
 

Desert Island Docker: R Edition

DockerspeakingR
23 May 2024 12:00
 

Desert Island Docker: Python Edition

DockerspeakingPython
14 May 2024 12:00

A PDF viewer showing the book table of contents and Chapter 1 page for 101 Small Business Ideas for Under $5000.

Extract Chapter Headings from PDF

PDFBASH
29 Apr 2024 12:00
{emayili} Support for Mailtrap

{emayili} Support for Mailtrap

{emayili}R
23 Apr 2024 12:00
A farmer hoeing his field in the style of John Constable.

Backtesting

quantGARCHR
21 Apr 2024 12:00
A fanciful depiction of a Docker daemon in the style of Bernardo Patentino.

Docker-in-Docker with GitHub Actions

DockerGitHub
21 Apr 2024 12:00
A farmer, his sheep and equipment in the style of John Constable.

Asset Allocation

quantGARCHR
19 Apr 2024 12:00
Cut logs floating down a river in the Amazon.

Logging like a Lumberjack

loggingPython
18 Apr 2024 12:00
Cows in a field bordered by a dry stone wall. In the style of Joseph Conrad.

Parameter Constraints & Significance

quantGARCHR
16 Apr 2024 12:00
A painting of a river valley. On the left the countryside it verdant and green. On the right it's dry and brown.

Risk/Reward Tradeoff

quantGARCHR
15 Apr 2024 12:00
An minimal image evocative of a whale.

Docker Image from Scratch

Docker
14 Apr 2024 12:00
A farmer inspecting a cow. Image in style of John Constable.

Model Validation

quantGARCHR
14 Apr 2024 12:00
A landscape in the style of John Constable.

Parameter Significance & Parsimonious Models

quantGARCHR
13 Apr 2024 12:00
Two ladies on a seesaw in a field. In style of John Constable.

Leverage Effect

quantGARCHR
12 Apr 2024 12:00
A house tilted to the side in the middle of a river. Painting in the style of John Constable.

Skewed Returns

quantGARCHR
11 Apr 2024 12:00
A landscape in the style of John Constable.

What is a GARCH Model?

quantGARCHR
10 Apr 2024 12:00
An image of barrels being loaded onto carts in a style similar to that of John Constable.

Rolling Volatility & Returns

quantR
9 Apr 2024 12:00
An image of farm workers loading hay onto the back of a wagon in a style similar to that of John Constable.

Loading Financial Time Series

quantR
8 Apr 2024 12:00
 

PyInstaller, boto3 and configparser

Python
3 Apr 2024 12:00
Intellectuals at work in a Baroque style.

Python Packages from GitHub

PythonGitHubGit
10 Mar 2024 12:00
Read by Frank Collier

Read by Frank Collier

8 Mar 2024 12:00
Traffic in a LEGO landscape.

Host & Port: Where is it?

Traefik
2 Mar 2024 12:00
Traffic in a LEGO landscape.

What is Traefik?

TraefikNGINX
1 Mar 2024 12:00
An image of a whale.

Standalone Next.js Application in Docker

Docker
23 Feb 2024 12:00
A colourful image of people working in an impressionist style.

Testing CSS & Xpath

web scrapingCSS
8 Feb 2024 12:00
A mobster in Art Deco style.

Parsing the DOM

Gatsby
7 Feb 2024 12:00
An elaborate theatre in art deco style.

Gatsby Content from RSS

RSSGatsby
6 Feb 2024 12:00
An elaborate theatre in art deco style.

Gatsby Content from MDX

TypeScriptGatsby
2 Feb 2024 12:00
People socialising in an art deco style.

Dynamic User Pages

Gatsby
1 Feb 2024 12:00
A Roman centurion guarding a cage of snakes.

Python Security Audit

pre-commitGitPython
23 Jan 2024 12:00
 

ChromeDriver in GitLab CI Pipeline

SeleniumChromeDriverCIGitLab
22 Jan 2024 12:00
A medium conducting a seance in art deco style.

Gatsby Content from Medium

Gatsby
20 Jan 2024 12:00
A whale in art deco style.

Gatsby, Tailwind & Docker

DockerTailwindGatsby
19 Jan 2024 12:00
Three columns with a futuristic city background.

Next.js, Tailwind & Docker

DockerTailwind
18 Jan 2024 12:00
An old fashioned clothes mangle in a room with a wooden floor and stone walls.

Web Scraping with Class Name Mangling

web scraping
16 Jan 2024 12:00
 

.NET and MySQL in Docker

MySQLDocker
15 Jan 2024 12:00
An art deco style image of a garden party with an imposing house in the background.

WordPress Headless CMS

Gatsby
6 Jan 2024 12:00
A picture of a barber in Art Deco style, showing some men getting their hair cut and faces shaved.

Humble Head

Gatsby
5 Jan 2024 12:00
A Minecraft character wearing headphones, striding towards the viewer with an erupting volcano in the background.

Minecraft Plugin: Discord for Voice & Text Chat

pluginUbuntuMinecraft
31 Dec 2023 12:00
A Minecraft character wearing glasses. The landscape and clothing of the character are patterned with newspaper.

Minecraft Paper Server

UbuntuMinecraft
30 Dec 2023 12:00
A large library with vaulted ceiling.

Weekly Digest & Annual Review

KerasSSHJuliaFirefox
29 Dec 2023 12:00
A whale leaping out of the ocean in the style of Vincent van Gogh.

Chrome & ChromeDriver in Docker

DockerChromeDriverSelenium
19 Dec 2023 12:00
SSH Tunnel: Dynamic Port Forwarding

SSH Dynamic Port Forwarding with a SOCKS5 Proxy

SSHLinux
19 Dec 2023 12:00
An image of a library.

Weekly Digest

15 Dec 2023 12:00
A tunnel with large yellow earth-moving equipment.

SSH Tunnel: Remote Port Forwarding

SSHLinux
13 Dec 2023 12:00
Planes in an art deco style.

Middleware Redirects on Vercel

VercelGatsby
12 Dec 2023 12:00
A Minecraft scene with a river and trees.

Minecraft Client on Ubuntu

UbuntuMinecraft
11 Dec 2023 12:00
A Minecraft scene with a large character in the foreground.

Minecraft Server on Ubuntu

UbuntuMinecraft
10 Dec 2023 12:00
An image of a library.

Weekly Digest

LLMDockerSelenium
8 Dec 2023 12:00
Moored boats in an art deco style.

Static Redirects on Vercel

VercelGatsby
5 Dec 2023 12:00
A tunnel with large yellow earth-moving equipment.

SSH Tunnel: Local Port Forwarding

SSHLinux
5 Dec 2023 12:00
A surrealistic image of the confluence between two rivers.

Git: Accept All Incoming Changes in a Merge

Git
1 Dec 2023 12:00
An image of a library.

Weekly Digest

SparkKerasVercelR
1 Dec 2023 12:00
Weekly Digest — 2023/11/24

Weekly Digest

R
24 Nov 2023 12:00
Externalise CSS

Externalise CSS

CSSGatsby
20 Nov 2023 12:00
Weekly Digest — 2023/11/17

Weekly Digest

Docker
17 Nov 2023 12:00
Gatsby on Vercel.

Gatsby on Vercel

VercelGatsby
15 Nov 2023 12:00
Dynamic Routing with Gatsby

Dynamic Routing

Gatsby
13 Nov 2023 12:00
Weekly Digest — 2023/11/10

Weekly Digest

10 Nov 2023 12:00
Custom 404 Page

Custom 404 Page

Gatsby
9 Nov 2023 12:00
Gatsby on Netlify

Gatsby on Netlify

Gatsby
8 Nov 2023 12:00
Cookies & Headers from Selenium

Cookies & Headers from Selenium

web scrapingSeleniumcookiesPython
7 Nov 2023 12:00
Adding robots.txt to a Gatsby Site

Adding robots.txt to a Gatsby Site

SEOGatsby
6 Nov 2023 12:00
Weekly Digest — 2023/11/03

Weekly Digest

AWSDockerSpark
3 Nov 2023 12:00
Update Sitemap for canonical pages.

Update Sitemap for Canonical Pages

SEOsitemapGatsby
2 Nov 2023 12:00
Adding Canonical Tags

Add Canonical Links with Gatsby

SEOGatsby
1 Nov 2023 12:00
Gatsby Site Versions

Gatsby Site Versions

Gatsby
31 Oct 2023 12:00
Conditional Content in AsciiDoc

Conditional Content in AsciiDoc

AsciiDocGatsby
30 Oct 2023 12:00
Add Fields to the GraphQL Schema

Add Nodes & Fields to GraphQL Schema

AsciiDocGraphQLGatsby
27 Oct 2023 12:00
Weekly Digest — 2023/10/27

Weekly Digest

AWSDockerCSS
27 Oct 2023 12:00
Gatsby Page Ordering

Gatsby Page Ordering

AsciiDocGraphQLGatsby
25 Oct 2023 12:00
Adding GraphQL Fields to a Gatsby Site

Adding Custom Attributes to Pages in a Gatsby Site

AsciiDocGraphQLGatsby
24 Oct 2023 12:00
Gatsby Redirects

Gatsby Redirects

Gatsby
23 Oct 2023 12:00
Gatsby banner image.

Adding a Sitemap with Gatsby

SEOsitemapGatsby
22 Oct 2023 12:00
An art deco theatre stage with a glowing Gatsby sign.

Gatsby Content from AsciiDoc

AsciiDocGatsby
14 Oct 2023 12:00
A crowded Gatsby-style ballroom beneath tiered chandeliers.

Convert Gatsby from JavaScript to TypeScript

TypeScriptGatsby
11 Oct 2023 12:00
Gatsby banner image.

Gatsby Starter Project

JavaScriptGatsby
7 Oct 2023 12:00
Why Do Sports Odds Change?

Why Do Sports Odds Change?

sports betting
30 Sep 2023 12:00
Undetected ChomeDriver with noVNC.

Undetected ChromeDriver with noVNC

DockerSeleniumChromeDriverweb scrapingnoVNC
24 Sep 2023 12:00
Gatsby running out of heap space.

Gatsby running out of heap space

CIGatsbyGitHub
8 Sep 2023 12:00
An American flag above the words Transparency in Coverage.

Transparency in Coverage: JSON Data

JSONdata: medical
27 Aug 2023 12:00
An American flag above the words Transparency in Coverage.

Unravelling Transparency in Coverage Data

data: medicaljqJSONR
26 Aug 2023 12:00
Transparency in Coverage

What is Transparency in Coverage Data?

data: medical
25 Aug 2023 12:00
Mocking S3 in Python tests

Mocking S3 from Python tests

testingpytestS3Python
4 Aug 2023 12:00
Controlling what Alembic Autogenerates

Controlling what Alembic Autogenerates

Alembic
22 Jul 2023 12:00
 

List of Medical Conditions

web scraping
24 Jun 2023 12:00
Flattening nested schemas in Marshmallow.

Flattening Nested Schemas

MarshmallowSQLAlchemy
11 Jun 2023 12:00
Hosting a GitLab Runner with Docker.

Hosting a GitLab Runner with Docker: Update

GitLab
30 May 2023 12:00

The GitLab form for creating a new project runner with tags, options and timeout settings.

GitLab Runner: Creating a Token

GitLab
30 May 2023 12:00
A photo-realistic image of a whale dressed to play tennis.

Pushing to Docker Hub from GitHub Actions

DockerGitHub
28 May 2023 12:00
Pushing to Docker Hub from GitLab CI

Pushing to Docker Hub from GitLab CI

DockerGitLab
28 May 2023 12:00
Eight racing kayaks shown from above on a white background.

Kayak Specifications

kayak
25 May 2023 12:00
 

Column Order: Inheritance & Declarative Base

SQLAlchemy
18 May 2023 12:00
Cartoon image of a currency exchange.

South Africa Real Effective Exchange Rate

17 May 2023 12:00
Using mailmap to tidy Git contributors.

Using mailmap to Tidy Git Contributors

Git
1 May 2023 12:00
An art deco image of a kitchen.

Installing Gatsby

UbuntuGatsby
6 Apr 2023 12:00
Developing a Gatsby Site with Docker

Developing a Gatsby Site with Docker

DockerGatsby
4 Apr 2023 12:00
Configuring BASH History

Configuring Bash History on Linux

LinuxBASH
1 Apr 2023 12:00
Chrome DevTools Protocol & Selenium.

Chrome DevTools Protocol & Selenium

web scrapingSeleniumdevtools
11 Mar 2023 12:00
Content-ID and Message-ID

Content and Message IDs

email
18 Dec 2022 12:00
{emayili} Support for ZeptoMail

{emayili} Support for ZeptoMail

{emayili}R
27 Nov 2022 12:00

AWS Workspaces client.

AWS Workspace Client on Ubuntu 22.10

AWSUbuntu
2 Nov 2022 12:00
Stay Below the Radar: Undetected ChromeDriver

Stay Below the Radar

DockerSeleniumChromeDriverweb scraping
26 Oct 2022 12:00
{pagedown} Page Size & Margins

{pagedown} Page Size & Margins

{pagedown}R
22 Oct 2022 12:00
Scaling Density Plots

Scaling Density Plots

{ggplot2}{ggridges}R
8 Oct 2022 12:00
 

Handling Empty Paragraphs from R Markdown

MarkdownHTMLCSSR
29 Sep 2022 12:00

A blue square and a green square.

Vertically Align an Image and Text in a div

HTMLCSS
24 Sep 2022 12:00
Enforcing Style in an R Project

Enforcing Style in an R Project

lintpre-commitGitR
20 Sep 2022 12:00
Enforcing Style in a Python Project

Enforcing Style in a Python Project

lintpre-commitGitPython
19 Sep 2022 12:00

A left-handed spiral.

Squares & Spirals

R
18 Sep 2022 12:00
Calculating the Fire Danger Index (FDI)

Calculating the Fire Danger Index (FDI)

R
8 Sep 2022 12:00
Using Shiny Server in Docker

Using Shiny Server in Docker

ShinyDockerR
7 Sep 2022 12:00
Postboxes & Postal Codes

Postboxes & Postal Codes

{blimey}R
13 Aug 2022 12:00
The GitHub social preview card for the {blimey} package.

Schools in England

{blimey}R
11 Aug 2022 12:00
Linux Packages for R

Linux Packages for R

LinuxR
9 Aug 2022 12:00
Historical Weather Data

Historical Weather Data

RPython
7 Aug 2022 12:00
Persisting Data with Pickle & S3

Persisting Data with Pickle & S3

S3Python
28 Jul 2022 12:00
The GitHub social preview card for the {blimey} package.

Great Britain Railway Network

spatial{blimey}R
16 Jul 2022 12:00
An old stock exchange trading floor from the 1920s.

Interactive Brokers API: Connecting from MATLAB

trading
10 May 2022 12:00
An old stock exchange trading floor from the 1920s.

Interactive Brokers Client Portal API Gateway

trading
9 May 2022 12:00
Interactive Brokers: Gateway Automation

Interactive Brokers: Gateway Automation

trading{IBrokers}
21 Apr 2022 12:00
The Interactive Brokers logo on a black background.

Interactive Brokers: Gateway Install & Setup

trading
20 Apr 2022 12:00
{emayili} Encrypted Email with Mailfence

{emayili} Encrypted Email with Mailfence

GPG{emayili}R
4 Apr 2022 12:00
Mailfence Setup

Mailfence Setup

encryptionemail
3 Apr 2022 12:00
Pre-Registered GitLab Runner in a Container

Pre-Registered GitLab Runner in a Container

DockerGitLab
23 Mar 2022 12:00
Scheduling Refresh of a Materialised View

Schedule a PostgreSQL Materialised View Refresh

PostgreSQLAWSRDSSQL
22 Mar 2022 12:00
Firing Up Firestore

Firing Up Firestore

Python
20 Mar 2022 12:00
Making sense of drug prices.

Making Sense of Drug Prices

9 Mar 2022 12:00
Updated Gmail Authentication

{emayili} Updated Gmail Authentication

{emayili}R
8 Mar 2022 12:00
Banner for 'Creating Git Commits in CI' post.

Creating Git Commits in CI

CIGitGitLabGitHub
4 Mar 2022 12:00
 

Adding Timestamp Columns

PostgreSQLSQL
23 Feb 2022 12:00
Pushing Docker Images to AWS ECR

Pushing Docker Images to AWS ECR

DockerGitLabECR
18 Feb 2022 12:00
How to Harvest RSS Feeds

How to Harvest RSS Feeds

RSSweb scraping
31 Jan 2022 12:00
Upgrading R

A Recipe for Upgrading R

R
25 Jan 2022 12:00
Message Templates

{emayili} Message Templates

{emayili}R
21 Jan 2022 12:00
Sending Email from Shiny

{emayili} Sending Email from Shiny

Shiny{emayili}R
20 Jan 2022 12:00
HTML Messages with Images

{emayili} HTML Messages with Images

{emayili}R
12 Jan 2022 12:00
 

Building GPXSee

spatial
5 Jan 2022 12:00
Translating Quick Chart Map Files

Translating QCT (Quick Chart) Map Files

spatial
30 Dec 2021 12:00
{emayili} Sending Encrypted Email

{emayili} Sending Encrypted Email

{emayili}R
7 Dec 2021 12:00
{emayili} Understanding Encrypted Email

{emayili} Understanding Encrypted Email

emailencryptionGPG{emayili}
26 Nov 2021 12:00
{filebin} Quick & Easy File Sharing

{filebin} Quick & Easy File Sharing

{filebin}R
18 Nov 2021 12:00
{binance} Spot Trading

{binance} P2P Trades

{binance}R
10 Nov 2021 12:00
Shared Memory & Docker

Shared Memory in Docker with the shm-size Flag

SeleniumLinuxDocker
9 Nov 2021 12:00
{binance} Spot Trading

{binance} Spot Trading: Liquidity

{binance}R
8 Nov 2021 12:00
Accessing Virtual Memory from a Docker Container

Accessing Virtual Memory from a Docker Container

Docker
6 Nov 2021 12:00
{binance} Spot Trading

{binance} Spot Trading: Limit Orders

{binance}R
5 Nov 2021 12:00
{binance} Spot Trading

{binance} Spot Trading: Market Orders

{binance}R
1 Nov 2021 12:00
{binance} Dealing with Dust

{binance} Dealing with Dust

{binance}R
27 Oct 2021 12:00
{binance} Tracking Total Account Balance

{binance} Tracking Total Account Balance

{binance}R
26 Oct 2021 12:00
HCRIS Field Labels

HCRIS Field Labels

{pdftools}R
19 Oct 2021 12:00
{emayili} Message Threads

{emayili} Message Threads

{emayili}R
18 Oct 2021 12:00
{emayili} Support for Gmail, SendGrid & Mailgun

{emayili} Support for Gmail, SendGrid & Mailgun

{emayili}R
15 Oct 2021 12:00
Fathoming Email Headers

Fathoming Email Headers

email
11 Oct 2021 12:00
{emayili} Message Precedence

{emayili} Message Precedence

{emayili}R
6 Oct 2021 12:00
{emayili} Message Integrity

{emayili} Message Integrity

{emayili}R
5 Oct 2021 12:00
Working with Fairly Wide Data

Working with Fairly Wide Data

SQLR
4 Oct 2021 12:00
Medusa: A Multi-Headed Tor Proxy

Medusa: A Multi-Headed Tor Proxy

web scrapingproxyTor
1 Oct 2021 12:00
{emayili} Right-to-Left

{emayili} Right-to-Left

Markdown{emayili}R
24 Sep 2021 12:00
{emayili} Styling Figures

{emayili} Styling Figures

Markdown{emayili}R
23 Sep 2021 12:00
{emayili} Managing CSS

{emayili} Managing CSS

Markdown{emayili}R
22 Sep 2021 12:00
{emayili} R Markdown Parameters

{emayili} R Markdown Parameters

Markdown{emayili}R
20 Sep 2021 12:00
{emayili} Rendering R Markdown

{emayili} Rendering R Markdown

Markdown{emayili}R
17 Sep 2021 12:00
{emayili} Rendering Plain Markdown

{emayili} Rendering Plain Markdown

Markdown{emayili}R
10 Sep 2021 12:00
{clockify} — Time Tracking from R

{clockify} Time Tracking from R

{clockify}R
9 Sep 2021 12:00
Setting up a Tiny HTTP Proxy

Tinyproxy Configuration: Set Up a Tiny HTTP Proxy

AWSproxy
8 Sep 2021 12:00
Pre-Commit Hook for Processing

Pre-Commit Hook for Processing README.Rmd

RGit
5 Sep 2021 12:00
{emayili} Interpolating Message Content

{emayili} Interpolating Message Content

{emayili}R
3 Sep 2021 12:00
Websockify with Token Target Selection

Websockify with Token Target Selection

NGINXnoVNCWebsockify
22 Aug 2021 12:00
{emayili}: Rudimentary Email Address Validation

{emayili} Rudimentary Email Address Validation

{emayili}R
21 Aug 2021 12:00
Image adapted from the cover of 'Old Hat New Hat' by Dr Seuss.

Old ’Hood, New ’Hood

spatial{geosphere}{ggmap}R
11 Aug 2021 12:00
Websockify & noVNC: Adding SSL

Websockify & noVNC: Adding SSL

NGINXnoVNCWebsockify
8 Aug 2021 12:00
Websockify & noVNC behind an NGINX Proxy

Websockify & noVNC behind an NGINX Proxy

NGINXnoVNCWebsockify
7 Aug 2021 12:00
Creating an AMI using the AWS CLI

Creating an AMI using the AWS CLI

AWS
31 Jul 2021 12:00
TomTom Traffic banner.

TomTom Traffic

{tomtom}R
27 Jul 2021 12:00
A highway stretching into the distance.

TomTom Routing

spatial{tomtom}R
26 Jul 2021 12:00

GitLab banner.

Fixing Truncated Logs on Gitlab CI/CD

CIGitLab
24 Jul 2021 12:00

A highway with mountains on the horizon.

Mobility & Unrest in South Africa

{saffer}{mobility}R
24 Jul 2021 12:00

ECS

SSH Tunnel from Docker

SSHDocker
25 Jun 2021 12:00
A banner image featuring the Shiny logo and the name of the {shiny} R package.

Shiny on ECS

ShinyECSR
24 Jun 2021 12:00

Tweet poll about amount of swap space to use on a Linux system.

Adding Swap Space on Ubuntu

Linux
10 Jun 2021 12:00
 

Scrapy with a Rotating Tor Proxy

proxyTorScrapyDockerPython
9 Jun 2021 12:00

ECS task size settings.

RAM & CPU Requirements for a Selenium Crawler

AWSSeleniumweb scrapingECS
4 Jun 2021 12:00

A Shiny app with static views of the Penguins data.

Shiny Inception: JavaScript in Rendered Markdown

ShinyR
3 Jun 2021 12:00

Airflow

Building an Airflow Environment in Docker

DockerUbuntu
31 May 2021 12:00

An LXDE desktop accessible via HTTP.

Desktop in Docker

DockerUbuntu
30 May 2021 12:00
Using {pagedown} in Docker

Using {pagedown} in Docker

Docker{pagedown}R
28 May 2021 12:00

Selecting a target group.

AWS EC2: Setting up a Load Balancer

AWSEC2
9 May 2021 12:00
A banner image for AWS/EC2.

AWS EC2: Creating a Target Group

AWSEC2
8 May 2021 12:00
A banner image for AWS/ECS.

AWS Containers #8: Setting up a Service

AWSECS
6 May 2021 12:00
A banner image for AWS/EC2.

AWS EC2: Security Groups

AWSEC2
2 May 2021 12:00
A banner image for AWS/ECS.

AWS Containers #4: Dependencies

AWSECS
28 Apr 2021 12:00
A banner image for AWS/ECS.

AWS Containers #5: Health Checks

AWSECS
28 Apr 2021 12:00
A banner image fof AWS/ECR.

AWS Containers #3: Image on ECR

DockerAWSECR
27 Apr 2021 12:00
A banner image for AWS/ECS.

AWS Containers #2: Defining an ECS Task

DockerAWSECS
26 Apr 2021 12:00
A banner image for AWS/ECS.

AWS Containers #1: Creating an ECS Cluster

AWSECS
25 Apr 2021 12:00
A banner image featuring the Docker logo.

Selenium Crawler #3: Docker Compose

SeleniumDockerPython
19 Apr 2021 12:00
A banner image featuring the Docker logo.

Selenium Crawler #2: Docker Bridge Network

SeleniumDockerPython
18 Apr 2021 12:00
A banner image featuring the Docker logo.

Selenium Crawler #1: Docker Host Network

SeleniumDockerPython
17 Apr 2021 12:00

Taxonomic ranks.

{hagr} Linnaean Classification

{hagr}R
16 Apr 2021 12:00

A 100 Watt light bulb.

{hagr} Database of Animal Ageing and Longevity

{hagr}R
12 Apr 2021 12:00
Happy Easter banner.

The Easter Bunny is Cashing In

{trundler}R
3 Apr 2021 12:00

Mobility for workplaces.

Making the Most of Mobility

R
2 Apr 2021 12:00

Banner for the {core} package.

An Environment for Reliably Rendering Figures in R

DockerR
23 Mar 2021 12:00

Docker banner.

Flexible Environment Variables for a Docker Image

DockerCIGitLab
22 Mar 2021 12:00
The Docker logo on a white background.

Install GitLab Runner with Docker

DockerCIGitLab
21 Mar 2021 02:00
Banner for the {emayili} package.

{emayili} UTF-8 Filenames & Setting Sender

{emayili}R
8 Mar 2021 12:00

PGLoader banner.

Resurrecting MySQL into PostgreSQL with PGLoader

MySQLPostgreSQLDocker
2 Mar 2021 12:00
The {blogdown} hex sticker and wordmark on a white background.

{blogdown}: Optimise PNG Image Size

{blogdown}R
21 Feb 2021 12:00
Banner for the {emayili} package.

{emayili} Sending Birthday Messages

{emayili}R
18 Feb 2021 12:00
The {blogdown} hex sticker and wordmark on a white background.

Setting up postref Shortcode for Remote Blog

Hugo{blogdown}R
10 Feb 2021 12:00

Selenium banner.

Launching Selenium with JavaScript Disabled

Seleniumweb scrapingPython
3 Feb 2021 12:00

Components of the South African fuel price as a stacked area chart.

Levies, Tax and the Fuel Price in South Africa

{saffer}R
1 Feb 2021 12:00

The network bandwidth that you get from Rain is not much more than a trickle.

This is not Rain: It’s a Trickle

Seleniumweb scrapingR
30 Jan 2021 12:00

Selenium banner.

Persistent Selenium Sessions

SeleniumPython
28 Jan 2021 12:00
A banner image for the {saffer} R package with a hex logo featuring the South African flag.

Cyril’s Speeches

{saffer}R
14 Jan 2021 12:00
A banner image for the {saffer} R package with a hex logo featuring the South African flag.

Topographic Maps for South Africa

spatialDocker{saffer}R
12 Jan 2021 12:00
A banner image for the {saffer} R package with a hex logo featuring the South African flag.

Price of Fuel in South Africa

{saffer}R
10 Jan 2021 12:00

SQLAlchemy logo

SQLAlchemy: Efficient Counting

SQLAlchemySQL
9 Jan 2021 12:00

Banner for the {trundler} package.

Retail Pricing: Latex Gloves

{trundler}R
6 Jan 2021 12:00
Garmin logo.

Running History: Garmin Connect

runningR
5 Jan 2021 12:00

Banner for the {trundler} package.

Retail Pricing: Nitrile Gloves

{trundler}R
4 Jan 2021 12:00
Strava logo.

Running History: Strava

runningR
2 Jan 2021 12:00
The GitLab logo on a white background.

GitLab CI: Services

GitLab
30 Dec 2020 12:00
 

Rendering an R Markdown Presentation to GitLab Pages

RGitLab
23 Sep 2020 02:00
 

Scrapy Ban Policies with Rotating Proxies

Scrapy
17 Sep 2020 02:00
 

Uploading CSV to MySQL

MySQL
1 Sep 2020 02:00

DBeaver dialog for connecting to a PostgreSQL database.

Configuring a Development Database

Docker
30 Aug 2020 02:00
Resizing a Volume on an EC2 Linux Instance.

Resizing a Volume on an EC2 Linux Instance

AWS
4 Aug 2020 03:00
A banner image featuring the NGINX logo and the name of the NGINX package.

Shiny App in Docker with HTTP Authentication

DockerShinyNGINXR
29 Jun 2020 02:00

Romantic red roses for sale in Gauteng only.

Retail Data: R Package

{trundler}R
15 Mar 2020 12:00

Swagger interface for the Retail Pricing Data API.

Retail Data: Scraping & API

web scrapingPython
15 Mar 2020 12:00

Logo for @racently.

R Package for @racently

runningR
6 Dec 2019 02:00

Banner for the Durban EDGE DataQuest.

Durban EDGE DataQuest

R
13 Nov 2019 02:00
Logo for @racently.

An API for @racently

runningR
12 Nov 2019 02:00

Banner image for 'Scraping Machinery Parts'.

Scraping Machinery Parts

web scrapingR
11 Nov 2019 02:00

R banner.

Installing Prophet on CentOS

LinuxR
4 Nov 2019 02:00

Optimisation banner.

Private Security and the Pareto Principle

Data ScienceR
16 Oct 2019 02:00
 

Tweaking Linux for Pernickety Projectors

Linuxspeaking
12 Oct 2019 02:00
 

MySQL Backups

MySQL
17 Sep 2019 02:00

Terminal window showing connection to Docker container running R using packages installed on the image.

R, Docker and Checkpoint: A Route to Reproducibility

DockerR
28 Aug 2019 09:30

Map showing optimal routes from geographic centre of the USA to all counties.

All Roads Lead to Rome

OSRMR
28 Jul 2019 09:30
 

Using Shared Memory with OSRM

OSRMLinux
26 Jul 2019 09:30

Cover image of the Joy Division 'Unknown Pleasures' album recreated in R using the {ggridges} package.

Recreating ‘Unknown Pleasures’ graphic

R
15 Jul 2019 02:00

Distribution of running times in the 2019 Comrades Marathon broken down by major landmarks on course.

Comrades Marathon (2019) Splits

runningR
1 Jul 2019 04:00

Medal distribution at the 2019 Comrades Marathon broken down by gender and age category.

Medal Breakdown at Comrades Marathon (2019)

runningR
30 Jun 2019 02:30

Delay at the start of the Comrades Marathon broken down by batch.

Comrades Marathon (2019) Start Delay

runningR
15 Jun 2019 02:30

Interface of the Comrades Marathon pacing app.

A Shiny Comrades Marathon Pacing App

ShinyrunningR
4 Jun 2019 02:30
Banner for the {emayili} package.

{emayili} Sending Email from R

{emayili}R
27 May 2019 05:00
 

Setting up an R Admin Group

R
11 Apr 2019 03:30

A sliding puzzles with tiles numbered from 1 to 8.

Sliding Puzzle Solvable?

Python
10 Apr 2019 02:30

Relationship between Rserve, the SSE plugin and Qlik Sense on Windows.

Integrating Qlik Sense and R

DockerR
26 Mar 2019 02:30

The tomb of Jim Morrison in the Père Lachaise Cemetery.

satRday (Paris) 2019

conference
25 Feb 2019 10:30
 

Docker Images for R: r-base versus r-apt

DockerR
21 Jan 2019 04:00
 

RServe: Getting Started

R
21 Jan 2019 04:00
 

JSON Payload for POST Request

R
10 Jan 2019 04:00
Logos for Citrix and R.

Where does .Renviron live on Citrix?

R
8 Jan 2019 04:00
Banner for Survey Raking post.

Survey Raking: An Illustration

R
26 Dec 2018 04:00
 

Citrix Receiver on Ubuntu

LinuxCitrix
14 Dec 2018 10:00
Banner for Scraping the Turkey Accordion post.

Scraping the Turkey Accordion

web scrapingR
12 Dec 2018 02:00
 

RStudio & Shiny Servers with NGINX & SSL

ShinyR
14 Nov 2018 02:00
 

Installing RStudio & Shiny Servers

ShinyR
13 Nov 2018 02:00

Example of data from the Registry of Open Data on AWS.

Accessing Open Data from AWS

AWS
4 Nov 2018 02:00
 

Embedding Dependencies into a HTML File

speaking
31 Oct 2018 02:00
 

DNS on Ubuntu

Ubuntu
25 Oct 2018 04:30
 

@pyconza (2018): Data Science and Bayes with Python

conferencePython
15 Oct 2018 06:00
 

Docker Images for Spark

DockerSpark
28 Sep 2018 02:00
A banner image featuring the MySQL logo.

MySQL Server Replication using Binary Logs

MySQL
17 Sep 2018 02:00

The OpenVPN logo.

DIY VPN with Docker

DockerVPN
11 Sep 2018 05:00

Creating an IAM policy by cloning the IAMFullAccess policy.

Refining an AWS IAM Policy for Flintrock

SparkAWS
8 Sep 2018 02:00
 

Diagnosing RStudio Startup Issues

R
7 Sep 2018 02:00
Being the Chair: Notes on Running a Conference Session.

Chairing a Conference Session

speakingconference
9 Aug 2018 02:00

Julia and Stan logos.

Setup for using Stan with Julia

Julia
25 Jul 2018 03:30
 

Updating R on Ubuntu

R
9 Jul 2018 01:00
A few pictures from Budapest.

eRum (2018) Top Twenty

conferenceR
18 May 2018 04:30

Optimal route between various locations around Durban.

Travelling Salesman with ggmap

R
10 May 2018 11:00
Graphic from the Depeche Mode album 'Get the Balance Right'.

Classification: Get the Balance Right

R
21 Apr 2018 01:00
 

Workshop: Web Scraping with R

12 Apr 2018 01:00
 

Tips for Lightning Talks

speakingR
6 Apr 2018 07:30
 

Restoring a Django Backup

Django
23 Feb 2018 10:00

The DataGrip logo.

Installing DataGrip on Ubuntu

LinuxSQL
16 Feb 2018 08:00
 

SQL Server from Ubuntu

LinuxSQL
5 Feb 2018 08:00

Select the Compute option.

Linux VM on Azure

AzureLinux
5 Feb 2018 07:00
 

Installing rJava

LinuxDockerR
5 Feb 2018 07:00
 

Ethereum: DIY Tools for Smart Contracts

Ethereum
19 Jan 2018 03:30

Time series plot of Ethereum transactions.

Ethereum: Running a Node

Ethereum
19 Jan 2018 03:30

Status page for NTP server at za.pool.ntp.org.

NTP: Synchronise Your Watches

11 Jan 2018 04:30
Charts showing number of Ethereum transactions and unique addresses.

An Ethereum Package for R

Ethereum
7 Jan 2018 08:00
 

Moving a Running Process to screen

Linux
30 Dec 2017 04:00

Creating an AMI: Setting name and description.

Creating an Amazon Machine Image

AWS
4 Dec 2017 03:00

Running across 32 cores on a r4.8xlarge instance.

Using Large Maps with OSRM

OSRM
27 Nov 2017 07:00
 

EC2 Missing Disk Space

AWS
23 Nov 2017 07:30
 

Variable Names: Camel Case to Underscore Delimited

R
20 Nov 2017 04:30

Image from satRday 2017 in Cape Town.

Analysis of Feedback from satRday [Cape Town] 2017

satRdayConferenceR
15 Nov 2017 03:30

Number of tweets versus day showing clear diurnal pattern.

Durban Twitter Analysis

R
10 Nov 2017 12:00
 

Running OSRM with Docker

DockerOSRM
7 Oct 2017 07:00

Choosing which NVIDIA driver to download.

Installing NVIDIA Graphics Driver on Ubuntu

LinuxGPU
7 Oct 2017 07:00
 

Exporting HTML Presentations to PDF

speaking
5 Oct 2017 07:00

The Docker logo.

Quick WordPress Install with Docker

WordPressMySQLNGINXDockerLinux
22 Sep 2017 11:00

Comic about the Out of Memory (OOM) killer.

Diagnosing Killed Jobs on EC2

LinuxAWS
21 Sep 2017 08:30
Redundant hostnames dialog in Google Analytics.

Removing Redundant Hostnames with NGINX

NGINX
15 Sep 2017 09:00

The AWS S3 management console.

Creating a S3 Bucket

AWS
14 Sep 2017 05:00
 

Installing Docker on Ubuntu

DockerLinux
14 Sep 2017 05:00

The {plumber} logo.

Hosting a Plumber API on AWS

AWSPlumberR
14 Sep 2017 04:00

Example of prices of various spot instance prices.

Creating an AWS Spot Instance

AWS
13 Sep 2017 08:30

Exporting data from OpenStreetMap.

Building a Local OSRM Instance

OSRMR
11 Sep 2017 08:30
 

Global Variables in R Packages

R
7 Sep 2017 02:30
 

Driving AWS from the Command Line

AWS
31 Aug 2017 11:00

Google Maps showing recommended route from A to B.

Route Asymmetry in Google Maps

R
23 Aug 2017 04:00
 

Retrieve Kaggle Data from the Command Line

AWS
21 Aug 2017 11:00
 

Setting Up Time Zones in BASH

BASH
20 Aug 2017 05:00
 

Setting Up Time Zones in MySQL

MySQLDjango
20 Aug 2017 05:00

Adding a new volume in the AWS console.

Adding a Volume to an Ubuntu EC2 Instance

AWS
10 Aug 2017 03:00

The Vinagre login dialog.

Remote Desktop on an Ubuntu EC2 Instance

AWS
8 Aug 2017 03:00

An R banner.

A Timeline History of R

R
5 Aug 2017 01:00

The AWS logo.

Adding Users to an EC2 Ubuntu Instance

AWSLinuxSSH
24 Jul 2017 01:00

The Docker logo.

Docker: Persisting User Data

Docker
20 Jul 2017 03:30

The AWS EC2 logo.

Deploying Jupyter on AWS using Docker

JupyterDockerAWS
18 Jul 2017 04:00

Docker banner.

RStudio Environment on DigitalOcean with Docker

DockerR
11 Jul 2017 04:00
 

Installing Hadoop on Ubuntu

Linux
4 Jul 2017 09:30

The Spark status page.

Installing Spark on Ubuntu

LinuxSpark
4 Jul 2017 09:30

A Jupyter notebook using the `findspark` and `pyspark` packages.

Accessing PySpark from a Jupyter Notebook

JupyterSpark
4 Jul 2017 12:00
 

Increasing MySQL Packet Maximum Size

MySQL
1 Jul 2017 05:30
Logo of ExpressVPN.

Setting up ExpressVPN on Ubuntu

Linux
23 Jun 2017 07:00
A sample Jupyter notebook.

Setting up Jupyter with Python 3 on Ubuntu

JupyterLinux
23 Jun 2017 05:00

The Swagger interface for a simple Plumber API.

Deploying a Minimal Plumber API on DigitalOcean

R
21 Jun 2017 09:45
 

RSelenium and Java Heap Space

web scrapingSeleniumR
9 Jun 2017 05:45

Time series of adjusted closing price for a selection of stocks.

Clustering Time Series Data

Machine Learning
25 Apr 2017 12:00
Logo for the Bulgaria Web Summit (2017).

Bulgaria Web Summit

Conference
16 Apr 2017 08:00

Distribution of predicted marathon finish times based on initial beliefs without any information on a specific runner.

Bayesian Marathon Predictions

runningBayesianR
28 Feb 2017 08:22

Amazon book recommendations showing running, garlic gardening and data science titles.

Amazon is Getting Inside my Head

26 Feb 2017 08:22

Results from the Quick, Draw! neural network.

Google Quick, Draw!

17 Nov 2016 03:00
 

Simple School Maths Problem

15 Nov 2016 01:21

Banner image for satRday (2016) conference in Cape Town.

satRday Cape Town: Call for Submissions

ConferenceR
26 Oct 2016 03:18

Twitter banner.

fast-neural-style: Real-Time Style Transfer

Machine Learning
7 Oct 2016 03:00

A Cullen-Frey plot relating kurtosis to square of skewness.

Fitting a Statistical Distribution to Sampled Data

R
5 Oct 2016 03:00

MongoDB logo.

Python: First Steps with MongoDB

MongoDBPython
28 Sep 2016 03:00

Choosing connection speed to emulate in Chrome DevTools.

Chrome Developer Tools: Throttling Connection

web scraping
20 Sep 2016 08:21

Network tab in Chrome Developer Tools while a query is being processed.

Chrome Developer Tools: View POST Data

web scraping
19 Sep 2016 03:00

A simple graph with a number of nodes and edges.

Deleting All Nodes and Relationships

Neo4j
15 Sep 2016 03:00
The Neo4j logo.

Remote Access to Neo4j on Windows

Neo4j
13 Sep 2016 03:00
The Neo4j logo.

Installing Neo4j on Ubuntu

Neo4jLinux
6 Sep 2016 12:00
Banner image for post on Association Rules.

PLOS Subject Keywords: Association Rules

Association RulesR
1 Sep 2016 03:00

Default profile image.

ubeR: A Package for the Uber API

R
31 Aug 2016 06:00

Article title and abstract from PLOS ONE.

PLOS Subject Keywords: Gathering Data

Association RulesCollaborative FilteringR
24 Aug 2016 03:00
Lead runners in the ladies 800 metre race at the Rio Olympic Games.

Sportsbook Betting (Part 3): Evolving Odds

gamblingR
23 Aug 2016 03:00

Garmin ANT USB Dongle and the Linux penguin.

Garmin ANT on Ubuntu

Linux
22 Aug 2016 03:00
 

Anthony Goldbloom: The jobs we’ll lose to machines

Machine LearningTED Talk
22 Aug 2016 03:00

Simulation of evolution of gambling capital for 100 gamblers betting on even numbers at roulette.

Sportsbook Betting (Part 2): Bookmakers’ Odds

gamblingR
10 Aug 2016 03:00

Animated pyramid plot of deaths versus age broken down by gender for 1994 to 2014.

Animated Mortality

R
9 Aug 2016 03:00
 

feedeR: Reading RSS and Atom Feeds from R

R
8 Aug 2016 03:00
 

Web Scraping and “invalid multibyte string”

web scrapingR
2 Aug 2016 03:00

Odds for the tennis match between Madison Keys and Venus Williams.

Sportsbook Betting (Part 1): Odds

gamblingR
1 Aug 2016 03:00
 

Arthur Benjamin: Teach statistics before calculus!

TED Talkteaching
29 Jul 2016 03:00

Proportion living versus age, broken down by gender.

Building a Life Table

R
28 Jul 2016 03:00

Convergence of an estimate for pi calculated using a simulation of Buffon's Needle.

Calculating Pi using Buffon’s Needle

R
26 Jul 2016 03:00
 

Conrad Wolfram: Teaching kids real math with computers

TED Talkteaching
25 Jul 2016 03:00

Heat map of deaths versus age and year.

Mortality by Year and Age

R
22 Jul 2016 03:00

Female versus male life expectancy at birth broken down by country. Figure from Wikipedia.

Life Expectancy by Country

R
20 Jul 2016 04:00

Density plot of deaths per year versus age broken down by gender.

Mortality Rate by Age

R
19 Jul 2016 04:00

Boxplot of average age at death over time, broken down by gender.

Escalating Life Expectancy

R
18 Jul 2016 04:00

Histogram of births per day versus month of year.

Birth Month by Gender

R
16 Jul 2016 05:00

Bar chart of total birth count per month versus month.

Most Probable Birth Month

R
15 Jul 2016 04:49
 

Streaming from zip to bz2

Linux
8 Jul 2016 12:12

Distribution of birth month for major league baseball players.

Major League Baseball Birth Months

R
5 Jul 2016 05:00

View of Cape Town and satRday logo.

satRday in Cape Town

R
26 May 2016 03:03

View of Cape Town and satRday logo.

R Saturday [satRday] in Cape Town

R
12 May 2016 09:06
 

The Next Rembrandt

Machine Learning
6 Apr 2016 07:46

Histogram of age distributions for two segments of the South African population, those without schooling and those who have completed Grade 12.

International Open Data Day

R
5 Mar 2016 03:01

Map showing lightning flash density.

R, HDF5 Data and Lightning

R
23 Feb 2016 03:00
 

Ira Glass on the Creative Process

12 Feb 2016 03:00
 

Automating R scripts under Windows

R
11 Feb 2016 07:33
 

flipsideR: Support for ASX Option Chain Data

R
8 Feb 2016 03:00

Scores of best performers in the 'Santa’s Stolen Sleigh' Kaggle competition.

Kaggle: Santa’s Stolen Sleigh

R
22 Jan 2016 03:00

Proportion of congress members who are lawyers over time.

Lawyers and Politics

20 Jan 2016 08:22
 

Casting a Wide (and Sparse) Matrix in R

R
19 Jan 2016 11:22

Kaggle leaderboard for the 'Walmart Trip Type Classification' competition.

Kaggle: Walmart Trip Type Classification

R
15 Jan 2016 03:00

Installation dialog for MongoDB.

MongoDB: Installing on Windows 7

MongoDB
13 Jan 2016 01:10

Cover of 'Mastering Python Scientific Computing'.

Mastering Python Scientific Computing

book reviewPython
11 Jan 2016 03:00

Cover of 'Learning Shiny'.

Review: Learning Shiny

ShinyR
5 Jan 2016 03:00

Checksum error probability versus payload length.

Using Checksum to Guess Message Length: Not a Good Idea!

R
22 Dec 2015 03:00

Line plot of logarithmic loss versus predicted probability for a single positive observation.

Making Sense of Logarithmic Loss

R
14 Dec 2015 03:00

XGBoost logo.

Installing XGBoost on Ubuntu

RPython
9 Dec 2015 03:00

Proportion of salary survey respondents versus geographical region.

2015 Data Science Salary Survey

R
4 Dec 2015 03:00

Histogram of proportional usage of names for males and females.

Evolution of First Names: Unisex Names and Nicknames

23 Nov 2015 03:00

Line plot showing the number of times various names were used between 1880 and the present day. For each name the count for males and females is presented.

Evolution of First Names: Fashionable and Popular Names

16 Nov 2015 03:00

A simple graph constructed from an adjacency matrix.

Graph from Sparse Adjacency Matrix

R
12 Nov 2015 03:00

Ultrasound image of Elizabeth in utero.

First Names Evolution: Changes over Last Century

9 Nov 2015 03:00
 

LIBOR and Bond Yields

R
6 Nov 2015 03:00
 

Guy Kawasaki on Personal Branding

3 Nov 2015 03:00
Working with Images in Julia.

Day 38: Imaging

Julia
30 Oct 2015 03:00
Using Julia to work with Fourier Transforms.

Day 37: Fourier Techniques

Julia
26 Oct 2015 03:00
Using Markdown to format documents in Julia.

Day 36: Markdown

Julia
19 Oct 2015 03:00

Cover of 'Beautiful Data'.

Beautiful Data

book reviewPythonR
15 Oct 2015 04:00
Creating Maps using Julia.

Day 35: Mapping

Julia
15 Oct 2015 03:00
Networking with Julia.

Day 34: Networking

Julia
13 Oct 2015 03:00

The Light Table plugin manager.

Installing LightTable and Juno on Ubuntu

Julia
12 Oct 2015 03:30
Using Evolutionary Algorithms with Julia.

Day 33: Evolutionary Algorithms

Julia
12 Oct 2015 03:00
Building Classification models with Julia.

Day 32: Classification

Julia
9 Oct 2015 03:00
How to build and interpret a Regression model in Julia.

Day 31: Regression

Julia
8 Oct 2015 03:00
Clustering data using Julia.

Day 30: Clustering

Julia
7 Oct 2015 03:00

Cover of 'Data Mining with Rattle and R'.

Data Mining with Rattle and R

Machine Learningbook reviewR
7 Oct 2015 12:30
Using various Distance Measures in Julia.

Day 29: Distances

Julia
6 Oct 2015 03:00
Using Hypothesis Tests with Julia.

Day 28: Hypothesis Tests

Julia
5 Oct 2015 03:00
Working with distributions in Julia.

Day 27: Distributions

Julia
2 Oct 2015 03:00
Doing basic Statistics with Julia.

Day 26: Statistics

Julia
1 Oct 2015 03:00
Mixing Julia with other Programming Languages.

Day 25: Interfacing with Other Languages

JuliaRPython
30 Sep 2015 03:00
Working with Graphs (nodes and edges) in Julia.

Day 24: Graphs

Julia
29 Sep 2015 03:00
Using built-in Data Structures in Julia.

Day 23: Data Structures

Julia
28 Sep 2015 03:00
Optimisation using Julia.

Day 22: Optimisation

Julia
25 Sep 2015 03:00
Solving Differential Equations using Julia.

Day 21: Differential Equations

Julia
24 Sep 2015 04:00
Doing Calculus with Julia.

Day 20: Calculus

Julia
23 Sep 2015 02:00
Using Units of Measurement with Julia.

Day 19: Units of Measurement

Julia
22 Sep 2015 04:00
Plotting with Julia.

Day 18: Plotting

Julia
21 Sep 2015 04:00
 

PhysicalConstants.jl: Julia Package of Physical Constants

Julia
21 Sep 2015 03:00
Accessing R Datasets from Julia.

Day 17: Datasets from R

JuliaR
18 Sep 2015 03:56
Using Databases with Julia.

Day 16: Databases

Julia
17 Sep 2015 04:00
 

Setting up ODBC for SQLite on Ubuntu

Linux
17 Sep 2015 05:39
Doing Time Series analyses with Julia.

Day 15: Time Series

Julia
16 Sep 2015 02:00
Using DataFrames and DataArrays with Julia.

Day 14: DataFrames & DataArrays

Julia
15 Sep 2015 01:00
 

urlshorteneR: A package for shortening URLs

R
14 Sep 2015 05:00
Using Packages to extend the functionality of Julia.

Day 13: Packages

Julia
14 Sep 2015 01:00
Doing Parallel Processing with Julia.

Day 12: Parallel Processing

Julia
11 Sep 2015 01:00
Doing Metaprogramming in Julia.

Day 11: Metaprogramming

Julia
10 Sep 2015 02:00
 

A ggplot2 oddity

R
10 Sep 2015 12:32
Code encapsulation and extension with modules in Julia.

Day 10: Modules

Julia
9 Sep 2015 01:00
Reading and Writing from the console and files with Julia.

Day 9: Input/Output

Julia
8 Sep 2015 05:30
 

Day 8: Iteration, Conditionals and Exceptions

Julia
7 Sep 2015 05:29
 

Day 7: Functional Programming

Julia
6 Sep 2015 02:06

Cover of 'Learn Julia'.

Day 6: Composite Types

Julia
5 Sep 2015 04:10
 

Day 5: Collections

Julia
4 Sep 2015 08:23
Benchmarks of various Programming Languages.

Day 4: Functions

Julia
3 Sep 2015 06:01

xkcd comic about the relationship between sexual arousal and consecutive vowels.

Day 3: Variables and Data Types

Julia
2 Sep 2015 02:44

A Julia session in the Juno IDE.

Day 2: Development Environments

Julia
1 Sep 2015 05:28

Installing Julia on Ubuntu.

Day 1: Installation and Orientation

Julia
31 Aug 2015 07:32

A Shiny application for exploring Bayesian updates.

Shiny Bayesian Updates

BayesianShinyR
24 Jul 2015 12:13

Animation of lightning strikes detected by WWLLN on 4 July 2015.

Lightning on your Twitter Feed

13 Jul 2015 02:00

A word cloud constructed from 300 terms relating to ICML (2015).

Constructing a Word Cloud for ICML 2015

Conference
10 Jul 2015 09:30

Animation demonstrating the execution of a parallel job using Dask.

ICML 2015 (Lille, France): Day 5 (Workshops)

Conference
10 Jul 2015 07:10
 

ICML 2015 (Lille, France): Day 4

Conference
10 Jul 2015 09:38

Images generated by the DRAW neural network.

ICML 2015 (Lille, France): Day 3

Conference
8 Jul 2015 04:42
 

ICML 2015 (Lille, France): Day 2

Conference
8 Jul 2015 07:30

A simple black and white picture of a dog chasing a cat up a tree.

ICML 2015 (Lille, France): Day 1 (Tutorials)

Conference
7 Jul 2015 07:08
Cover of 'Machine Learning with R Cookbook'.

Machine Learning with R Cookbook

Machine Learningbook reviewR
3 Jul 2015 02:36

A volcanic plume containing a lightning discharge.

Flashes from the Ashes: Volcanic Lightning

3 Jul 2015 12:32

An Excel spreadsheet. A region of data and another region with relative links to the original data.

Excel: Copying with Relative Links

Excel
26 Jun 2015 12:25

Bar plots showing how number of movies released by Disney per year has declined from 2006 to 2015, while operating profits have increased.

Disney: Quality over Quantity

15 Jun 2015 02:03
 

R Recipe: RStudio and UNC Paths

R
4 Jun 2015 09:44

AWS Management Console.

Hosting Shiny on Amazon EC2

AWSShinyR
30 May 2015 11:41

A poster along the Comrades Marathon route.

Comrades Marathon Medal Predictions

runningShinyR
28 May 2015 07:52

Imperfect alignment of axes.

R Recipe: Aligning Axes in ggplot2

R
27 May 2015 06:14
 

R Recipe: Reordering Columns in a Flexible Way

R
16 May 2015 06:20

Graph showing connections between successive generations in synthetic data.

Recent Common Ancestors: Simple Model

R
15 May 2015 11:35

A Chord Diagram with random data.

R Recipe: Making a Chord Diagram

9 May 2015 03:07

Scatter plot of time run versus distance covered on a linear scale.

Comrades Marathon Finish Predictions

runningR
23 Apr 2015 12:06

Article indicating that 14 runners were disqualified from the Comrades Marathon.

Comrades Runners Disqualified: I’m Not Convinced

running
16 Apr 2015 11:16
 

Encyclopaedia: Meteorites in Antarctica

13 Apr 2015 09:00

Example riverplot showing constant edge colour.

A Sankey Plot with Uniform Coloured Edges

R
7 Apr 2015 11:16
 

Encyclopaedia: Discovery Expedition

6 Apr 2015 09:00

Simulated probability of picking balls out of an urn.

Bags, Balls and the Hypergeometric Distribution

R
3 Apr 2015 09:00

Pacing chart for a 10 hour finish at the Comrades Marathon.

Comrades Marathon Pacing Chart: Up Run

Excelrunning
1 Apr 2015 01:07

Monthly values of ZAR/USD exchange rate with month-to-month changes.

The Price of Fuel: How Bad Could It Get?

R
1 Apr 2015 09:00
 

Encyclopaedia: Geospace

30 Mar 2015 09:00

Orcadas Base on Laurie Island. Image courtesy of https://www.culturademontania.com.ar/.

Encyclopaedia: Scottish National Antarctic Expedition

23 Mar 2015 09:00

SANAE-IV Antarctic base.

Encyclopaedia: SANAE IV

16 Mar 2015 09:00

CYGWIN window showing results from running the file command on a TSV file.

Dealing with a Byte Order Mark (BOM)

R
11 Mar 2015 09:00

Cover of 'Graph Databases'.

Graph Databases

Neo4jbook review
9 Feb 2015 09:00

Cover of 'R for Business Analytics'.

R for Business Analytics

book reviewR
28 Jan 2015 10:50

Open Interest versus Strike Price for Call and Put options on a selection of dates.

Downloading Options Data in R: An Update

tradingoptionsR
14 Jan 2015 05:30

Evidence of physical processes which produce intricate branching structures.

Simulating Intricate Branching Patterns with DLA

R
16 Dec 2014 09:31

Life expectancy versus year for a selection of countries in xkcd style.

Creating More Effective Graphs

R
4 Nov 2014 12:25

Survey conducted by Standard Bank showing biased scoring scheme.

Standard Bank: Striving for Mediocrity

7 Oct 2014 03:32

An example river plot.

Plotting Flows with {riverplot}

R
14 Aug 2014 12:58

Chart showing change over a week in Commitment of Traders for various currencies.

Commitments of Traders: Moves in the Last Week

R
9 Aug 2014 10:46
 

Whistlers and Volcanic Lightning

30 Jul 2014 12:42

Distribution of runners' ages in the Comrades Marathon for 1980s, 1990s, 2000s and 2010s.

Comrades Marathon: A Race for Geriatrics?

runningR
22 Jul 2014 05:11

Old directory structure for MetaTrader 4 on Windows.

Where to Put EAs and Indicators in New MT4 Builds

20 Jul 2014 07:42
 

Comrades Marathon Negative Splits: Cheat Strikes Again

running
16 Jul 2014 09:00

A Dad and two sons finishing the 2014 Comrades Marathon together.

Twins, Tripods and Phantoms at the Comrades Marathon

runningR
12 Jun 2014 12:33
 

Concatenating a list of data frames

R
6 Jun 2014 01:16

Pacing chart summary.

Comrades Marathon Pacing Chart: Down Run

Excelrunning
28 May 2014 04:24

List of legacy Commitment of Traders reports available.

What Can We Learn from the Commitments of Traders Report?

21 May 2014 12:21

Histogram of finish times for novice runners in the Comrades Marathon, showing effects of strict and extended cutoffs.

Race Statistics for Comrades Novices: Corrigendum

runningR
17 May 2014 03:12

Histogram of finish times for novice runners in the Comrades Marathon.

Race Statistics for Comrades Marathon Novice Runners

runningR
16 May 2014 05:22

Distribution of NEOs in the solar-ecliptic plane.

Hazardous & Benign Objects: Solar-Ecliptic Orbits

R
12 May 2014 10:38

Tables of splits for various runners, showing runners where splits for Camperdown and Polly Shortts are both missing.

Comrades Marathon Negative Splits: The Plot Thickens

runningR
10 May 2014 03:05

Diagram showing relationship between various orbital parameters.

Hazardous & Benign Objects: Kepler’s Equation

R
8 May 2014 11:45

Density plot of split ratio.

Comrades Marathon: Negative Splits and Cheating

runningR
6 May 2014 10:17

Diagram showing various orbital parameters.

Hazardous & Benign Objects: Getting the Data

R
28 Apr 2014 10:33

Relative proportion of long and short trades.

R Interface to Myfxbook

R
17 Apr 2014 11:16

Map showing earthquake epicentre locations, coded according to whether the location is on land or under ocean.

Earthquakes: Land / Ocean Distribution

R
13 Apr 2014 10:22

Image of the Mount Tambora caldera.

Largest Volcanoes & Other Statistics

R
11 Apr 2014 11:55

Map with earthquake locations showing both depth and magnitude.

Earthquakes: Magnitude / Depth Chart

R
7 Apr 2014 12:19

Histograms of returns on S&P 500 and FTSE 100.

Daylight Saving Effect on Financial Indices

R
1 Apr 2014 11:47

Noisy simulated time series data smoothed using L1 and L2 filters and various regularisation strengths.

Filtering Data with L1 Regularisation

regularisationR
27 Mar 2014 12:39

Noisy simulated time series data smoothed using an L2 filter and various regularisation strengths.

Filtering Data with L2 Regularisation

regularisationR
25 Mar 2014 10:58

Probability of conception versus months.

How Long to Conceive?

R
12 Jan 2014 04:33

Mosaic plot of exposure time versus F number.

Processing EXIF Data

R
16 Dec 2013 05:13

An updated chart showing winners of both men's and ladies' races at Comrades Marathon showing the year and the number of times that the race has been won by each athlete.

Updated Comrades Winners Chart

running
14 Dec 2013 03:42

Map with contours showing unphysical behaviour of contours near border of map.

Contour and Density Layers with ggmap

R
14 Dec 2013 05:45

A misleading plot due to an unfortunate choice of scale on the y-axis.

Amy Cuddy: Your body language shapes who you are

TED Talk
27 Nov 2013 02:00
 

Deriving a Priority Queue from a Plain Vanilla Queue

R
26 Nov 2013 05:48
 

Implementing a Queue as a Reference Class

R
24 Nov 2013 12:18
 

Iterators in R

R
14 Nov 2013 04:20

The Mandelbrot Set showing two points, labelled A and B, and a region which will be zoomed.

Introduction to Fractals

R
4 Nov 2013 05:37
Percolation through a larger lattice at the percolation threshold.

Percolation Threshold: Including Next-Nearest Neighbours

R
1 Nov 2013 11:26

Two empty square lattices with different occupation probability.

Percolation Threshold on a Square Lattice

R
30 Oct 2013 05:38

An empty spiral plot.

Plotting Times of Discrete Events

R
19 Oct 2013 09:01
 

Mounting a sshfs volume via the crontab

Linux
6 Oct 2013 06:28

Bubble plot showing movie rating versus year.

Top 250 Movies at IMDb

web scrapingR
3 Oct 2013 05:23

Flush contents of buffer to disk by right-clicking on the Experts tab and then selecting the Open option.

Flushing Live MetaTrader Logs to Disk

18 Sep 2013 04:26

Dendrogram showing word clusters in the words of William Shakespeare.

Clustering the Words of William Shakespeare

R
10 Sep 2013 11:27

Desktop showing system time and time on MetaTrader platform.

MetaTrader Time Zones

9 Sep 2013 02:43

Word cloud showing the relative frequency of words in the works of William Shakespeare.

Text Mining the Complete Works of William Shakespeare

R
5 Sep 2013 11:41

Heatmap of employees versus problem, showing number of times each problem was reported for each employee. Data are not sorted.

Presenting Conformance Statistics

R
27 Aug 2013 11:33

Histogram of eigenvalues calculated for a collection of small random matrices.

The Wonders of {foreach}

{foreach}R
25 Aug 2013 10:17

Scatter plot of data.

Fitting a Model by Maximum Likelihood

R
18 Aug 2013 04:57
 

Correlations with Uncertainty: Classical Solution

R
13 Aug 2013 01:40

Scatter plot of original data showing error bars.

Correlations with Uncertainty: Bootstrap Solution

R
11 Aug 2013 09:50

Location of log files in MetaTrader file hierarchy.

Finding Your MetaTrader Log Files

8 Aug 2013 03:33

Winners of both men's and ladies' races at Comrades Marathon showing the year and the number of times that the race has been won by each athlete.

A Chart of Recent Comrades Marathon Winners

runningR
30 Jul 2013 03:54

A Conditional Inference Tree for predicting whether or not a runner will finish the Comrades Marathon based on various demographic features and their time at the half-way mark.

Comrades Marathon Inference Trees

runningR
19 Jul 2013 07:55

Box plot of the output from a noisy objective function.

Optimising a Noisy Objective Function

R
16 Jul 2013 05:07

Folders containing code for MetaTrader4 expert advisors.

Compiling Indicators and Expert Advisors

25 Jun 2013 06:41

Proportion of runners finishing the Comrades Marathon as a function of number medals already earned.

Are Green Number Runners More Likely to Bail?

runningR
22 Jun 2013 03:07

Heat map of Comrades Marathon medal count versus age.

The Green Number Effect

runningR
18 Jun 2013 02:25

Boxplot of Comrades Marathon runner age versus race year broken down by gender.

Age Distribution of Comrades Marathon Athletes

runningR
18 Jun 2013 11:06

Number of medals won in the 2013 Comrades Marathon broken down by age group and gender.

Medal Allocations at the Comrades Marathon

runningR
9 Jun 2013 05:53

Spine plot of Comrades Marathon result versus gender.

Comrades Marathon Attrition Rate

R
7 Jun 2013 06:58

Box plot of range and motion on GBP/USD.

Analysis of Cable Morning Trade Strategy

R
29 May 2013 11:20

Box plot of age versus gender for two classes.

Balanced Data with {MatchIt}

R
23 May 2013 03:08

Scatter plot in xkcd style showing GDP (on log scale) versus education spending (as a percentage of GDP).

xkcd Style Bubble Plot

R
23 May 2013 12:12

Chart of GBP/USD showing swing alert indicator.

Swing Alert Indicator

23 May 2013 03:53

Conditional inference tree for predicting air quality.

Package {party}: Conditional Inference Trees

{party}R
21 May 2013 11:13

Scatter plot of age versus BMI.

Plotting categorical variables

R
20 May 2013 01:08

Scatter plot of mass (kg) versus height (m) showing massive overplotting.

Plotting numerical variables

R
18 May 2013 10:38
 

Descriptive Statistics

R
18 May 2013 09:53
 

Categorical Variables

R
12 May 2013 08:14
 

Loading Data from a Tab Delimited File

R
12 May 2013 07:48

Chart of GBP/USD showing support-resistance indicator.

Support & Resistance Indicator

6 May 2013 08:56

Diagram showing locations of Earth's fleet of geosynchronous satellites.

Locations of Geosynchronous Satellites

R
16 Apr 2013 02:16
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