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Practical notes on data science, web scraping, Docker, cloud infrastructure, trading systems and software engineering from real project work.
What’s New in Chrome 144?
31 Jan 2026 12:00
What’s New in Firefox 147?
24 Jan 2026 12:00
What’s New in Firefox 146?
10 Dec 2025 12:00
What’s New in Chrome 143?
5 Dec 2025 12:00
Camoufox without a Context Manager
2 Dec 2025 12:00
Installing Tor Browser on Ubuntu
1 Dec 2025 12:00
What’s New in Firefox 145?
22 Nov 2025 12:00
Evaluating a New Job Market Data Feed
10 Nov 2025 12:00
Downloading from SharePoint
25 Oct 2025 12:00
Accelerating BeautifulSoup Encoding Detection
18 Oct 2025 12:00
Cycles in Lynx Numbers
16 Oct 2025 12:00
What’s happening on the Framebuffer?
13 Jul 2025 12:00
Camoufox in Docker
11 Jun 2025 12:00
Playwright Browser Footprint
6 Jun 2025 12:00
Hasler Statistics
5 May 2025 12:00
Get Cookies from Chrome or Firefox
3 May 2025 12:00
Headless Browser Hacks
2 May 2025 12:00
Webshare Proxies
3 Apr 2025 12:00
Test a Playwright Web Scraper
2 Apr 2025 12:00
Test a Selenium Web Scraper
31 Mar 2025 12:00
Iterating over a Paginated List of Links
25 Feb 2025 12:00
Handling HTML Entities and Unicode
8 Feb 2025 12:00
Scraping JSON-LD Data
7 Feb 2025 12:00
Test a Web Scraper using Patching
30 Jan 2025 12:00
Test a Web Scraper using Mocking
29 Jan 2025 12:00
Test a Web Scraper using VCR
28 Jan 2025 12:00
Test a Web Scraper using Responses
27 Jan 2025 12:00
Web Scraper Testing
26 Jan 2025 12:00
Zyte API Sessions
25 Jan 2025 12:00
Zyte API Cookie Management
22 Jan 2025 12:00
Web Scraping with the Zyte API
14 Jan 2025 12:00
Installing CPLEX
11 Dec 2024 12:00
Installing MOSEK
11 Dec 2024 12:00
Optimisation with Pyomo
10 Dec 2024 12:00
Optimisation with CVXPY
9 Dec 2024 12:00
Optimisation with SciPy
8 Dec 2024 12:00
Global versus Sequential Optimisation
7 Dec 2024 12:00
Optimisation Reference Problem
6 Dec 2024 12:00
Scraping and Not Modified Responses
3 Dec 2024 12:00
NetNut Proxies
12 Nov 2024 12:00
What is a Proxy?
11 Nov 2024 12:00
Migrating from GitLab Pages to Vercel
10 Nov 2024 12:00
Scraping the NYSE Composite Index
25 Oct 2024 12:00
Asset Price Data
24 Oct 2024 12:00
Listing Alpaca Assets
21 Oct 2024 12:00
Authenticate with Alpaca API
13 Oct 2024 12:00
Earnings Calendar
12 Oct 2024 12:00
Caching & Avoiding Duplication
10 Oct 2024 12:00
Downloading Files with Selenium
5 Oct 2024 12:00
Economic Calendar
2 Oct 2024 12:00
Your Life in Weeks
13 Aug 2024 12:00
Bypassing Cloudflare with Cloudscraper
20 Jul 2024 12:00
Unpacking cURL Commands
10 Jul 2024 12:00
Updates to the Big Book of R
26 Jun 2024 12:00
{emayili} Creating Email Threads
22 Jun 2024 12:00
Release: openai-python 1.33.0
8 Jun 2024 12:00
Installing Docker
5 Jun 2024 12:00
Locations from Google Map
26 May 2024 12:00
Desert Island Docker: R Edition
23 May 2024 12:00
Desert Island Docker: Python Edition
14 May 2024 12:00
Extract Chapter Headings from PDF
29 Apr 2024 12:00
{emayili} Support for Mailtrap
23 Apr 2024 12:00
Backtesting
21 Apr 2024 12:00
Docker-in-Docker with GitHub Actions
21 Apr 2024 12:00
Asset Allocation
19 Apr 2024 12:00
Logging like a Lumberjack
18 Apr 2024 12:00
Parameter Constraints & Significance
16 Apr 2024 12:00
Risk/Reward Tradeoff
15 Apr 2024 12:00
Docker Image from Scratch
14 Apr 2024 12:00
Model Validation
14 Apr 2024 12:00
Parameter Significance & Parsimonious Models
13 Apr 2024 12:00
Leverage Effect
12 Apr 2024 12:00
Skewed Returns
11 Apr 2024 12:00
What is a GARCH Model?
10 Apr 2024 12:00
Rolling Volatility & Returns
9 Apr 2024 12:00
Loading Financial Time Series
8 Apr 2024 12:00
PyInstaller, boto3 and configparser
3 Apr 2024 12:00
Python Packages from GitHub
10 Mar 2024 12:00
Read by Frank Collier
8 Mar 2024 12:00
Host & Port: Where is it?
2 Mar 2024 12:00
What is Traefik?
1 Mar 2024 12:00
Standalone Next.js Application in Docker
23 Feb 2024 12:00
Testing CSS & Xpath
8 Feb 2024 12:00
Parsing the DOM
7 Feb 2024 12:00
Gatsby Content from RSS
6 Feb 2024 12:00
Gatsby Content from MDX
2 Feb 2024 12:00
Dynamic User Pages
1 Feb 2024 12:00
Python Security Audit
23 Jan 2024 12:00
ChromeDriver in GitLab CI Pipeline
22 Jan 2024 12:00
Gatsby Content from Medium
20 Jan 2024 12:00
Gatsby, Tailwind & Docker
19 Jan 2024 12:00
Next.js, Tailwind & Docker
18 Jan 2024 12:00
Web Scraping with Class Name Mangling
16 Jan 2024 12:00
.NET and MySQL in Docker
15 Jan 2024 12:00
WordPress Headless CMS
6 Jan 2024 12:00
Humble Head
5 Jan 2024 12:00
Minecraft Plugin: Discord for Voice & Text Chat
31 Dec 2023 12:00
Minecraft Paper Server
30 Dec 2023 12:00
Weekly Digest & Annual Review
29 Dec 2023 12:00
Chrome & ChromeDriver in Docker
19 Dec 2023 12:00
SSH Tunnel: Dynamic Port Forwarding
19 Dec 2023 12:00
Weekly Digest
15 Dec 2023 12:00
SSH Tunnel: Remote Port Forwarding
13 Dec 2023 12:00
Middleware Redirects on Vercel
12 Dec 2023 12:00
Minecraft Client on Ubuntu
11 Dec 2023 12:00
Minecraft Server on Ubuntu
10 Dec 2023 12:00
Weekly Digest
8 Dec 2023 12:00
Static Redirects on Vercel
5 Dec 2023 12:00
SSH Tunnel: Local Port Forwarding
5 Dec 2023 12:00
Batch Resolving Merge Conflicts
1 Dec 2023 12:00
Weekly Digest
1 Dec 2023 12:00
Weekly Digest
24 Nov 2023 12:00
Externalise CSS
20 Nov 2023 12:00
Weekly Digest
17 Nov 2023 12:00
Gatsby on Vercel
15 Nov 2023 12:00
Dynamic Routing
13 Nov 2023 12:00
Weekly Digest
10 Nov 2023 12:00
Custom 404 Page
9 Nov 2023 12:00
Gatsby on Netlify
8 Nov 2023 12:00
Cookies & Headers from Selenium
7 Nov 2023 12:00
Adding robots.txt to a Gatsby Site
6 Nov 2023 12:00
Weekly Digest
3 Nov 2023 12:00
Update Sitemap for Canonical Pages
2 Nov 2023 12:00
Add Canonical Links with Gatsby
1 Nov 2023 12:00
Gatsby Site Versions
31 Oct 2023 12:00
Conditional Content in AsciiDoc
30 Oct 2023 12:00
Add Nodes & Fields to GraphQL Schema
27 Oct 2023 12:00
Weekly Digest
27 Oct 2023 12:00
Gatsby Page Ordering
25 Oct 2023 12:00
Adding Custom Attributes to Pages in a Gatsby Site
24 Oct 2023 12:00
Gatsby Redirects
23 Oct 2023 12:00
Adding a Sitemap with Gatsby
22 Oct 2023 12:00
Gatsby Content from AsciiDoc
14 Oct 2023 12:00
Convert Gatsby from JavaScript to TypeScript
11 Oct 2023 12:00
Gatsby Starter Project
7 Oct 2023 12:00
Why Do Sports Odds Change?
30 Sep 2023 12:00
Undetected ChromeDriver with noVNC
24 Sep 2023 12:00
Gatsby running out of heap space
8 Sep 2023 12:00
Transparency in Coverage: JSON Data
27 Aug 2023 12:00
Unravelling Transparency in Coverage Data
26 Aug 2023 12:00
What is Transparency in Coverage Data?
25 Aug 2023 12:00
Mocking S3 from Python tests
4 Aug 2023 12:00
Controlling what Alembic Autogenerates
22 Jul 2023 12:00
List of Medical Conditions
24 Jun 2023 12:00
Flattening Nested Schemas
11 Jun 2023 12:00
Hosting a GitLab Runner with Docker: Update
30 May 2023 12:00
GitLab Runner: Creating a Token
30 May 2023 12:00
Pushing to Docker Hub from GitHub Actions
28 May 2023 12:00
Pushing to Docker Hub from GitLab CI
28 May 2023 12:00
Kayak Specifications
25 May 2023 12:00
Column Order: Inheritance & Declarative Base
18 May 2023 12:00
South Africa Real Effective Exchange Rate
17 May 2023 12:00
Using mailmap to Tidy Git Contributors
1 May 2023 12:00
Installing Gatsby
6 Apr 2023 12:00
Developing a Gatsby Site with Docker
4 Apr 2023 12:00
Configuring BASH History
1 Apr 2023 12:00
Chrome DevTools Protocol & Selenium
11 Mar 2023 12:00
Content and Message IDs
18 Dec 2022 12:00
{emayili} Support for ZeptoMail
27 Nov 2022 12:00
AWS Workspace Client on Ubuntu 22.10
2 Nov 2022 12:00
Stay Below the Radar
26 Oct 2022 12:00
{pagedown} Page Size & Margins
22 Oct 2022 12:00
Scaling Density Plots
8 Oct 2022 12:00
Handling Empty Paragraphs from R Markdown
29 Sep 2022 12:00
Vertically Align Image & Text
24 Sep 2022 12:00
Enforcing Style in an R Project
20 Sep 2022 12:00
Enforcing Style in a Python Project
19 Sep 2022 12:00
Squares & Spirals
18 Sep 2022 12:00
Calculating the Fire Danger Index (FDI)
8 Sep 2022 12:00
Using Shiny Server in Docker
7 Sep 2022 12:00
Postboxes & Postal Codes
13 Aug 2022 12:00
Schools in England
11 Aug 2022 12:00
Linux Packages for R
9 Aug 2022 12:00
Historical Weather Data
7 Aug 2022 12:00
Persisting Data with Pickle & S3
28 Jul 2022 12:00
Great Britain Railway Network
16 Jul 2022 12:00
Interactive Brokers API: Connecting from MATLAB
10 May 2022 12:00
Interactive Brokers Client Portal API Gateway
9 May 2022 12:00
Interactive Brokers: Gateway Automation
21 Apr 2022 12:00
Interactive Brokers: Gateway Install & Setup
20 Apr 2022 12:00
Business Ideas
18 Apr 2022 12:00
{emayili} Encrypted Email with Mailfence
4 Apr 2022 12:00
Mailfence Setup
3 Apr 2022 12:00
Pre-Registered GitLab Runner in a Container
23 Mar 2022 12:00
Scheduling Refresh of a Materialised View
22 Mar 2022 12:00
Firing Up Firestore
20 Mar 2022 12:00
Making Sense of Drug Prices
9 Mar 2022 12:00
{emayili} Updated Gmail Authentication
8 Mar 2022 12:00
Creating Git Commits in CI
4 Mar 2022 12:00
Adding Timestamp Columns
23 Feb 2022 12:00
Pushing Docker Images to AWS ECR
18 Feb 2022 12:00
How to Harvest RSS Feeds
31 Jan 2022 12:00
A Recipe for Upgrading R
25 Jan 2022 12:00
{emayili} Message Templates
21 Jan 2022 12:00
{emayili} Sending Email from Shiny
20 Jan 2022 12:00
{emayili} HTML Messages with Images
12 Jan 2022 12:00
Building GPXSee
5 Jan 2022 12:00
Translating QCT (Quick Chart) Map Files
30 Dec 2021 12:00
{emayili} Sending Encrypted Email
7 Dec 2021 12:00
{emayili} Understanding Encrypted Email
26 Nov 2021 12:00
{filebin} Quick & Easy File Sharing
18 Nov 2021 12:00
{binance} P2P Trades
10 Nov 2021 12:00
Shared Memory & Docker
9 Nov 2021 12:00
{binance} Spot Trading: Liquidity
8 Nov 2021 12:00
Accessing Virtual Memory from a Docker Container
6 Nov 2021 12:00
{binance} Spot Trading: Limit Orders
5 Nov 2021 12:00
{binance} Spot Trading: Market Orders
1 Nov 2021 12:00
{binance} Dealing with Dust
27 Oct 2021 12:00
{binance} Tracking Total Account Balance
26 Oct 2021 12:00
HCRIS Field Labels
19 Oct 2021 12:00
{emayili} Message Threads
18 Oct 2021 12:00
{emayili} Support for Gmail, SendGrid & Mailgun
15 Oct 2021 12:00
Fathoming Email Headers
11 Oct 2021 12:00
{emayili} Message Precedence
6 Oct 2021 12:00
{emayili} Message Integrity
5 Oct 2021 12:00
Working with Fairly Wide Data
4 Oct 2021 12:00
Medusa: A Multi-Headed Tor Proxy
1 Oct 2021 12:00
{emayili} Right-to-Left
24 Sep 2021 12:00
{emayili} Styling Figures
23 Sep 2021 12:00
{emayili} Managing CSS
22 Sep 2021 12:00
{emayili} R Markdown Parameters
20 Sep 2021 12:00
{emayili} Rendering R Markdown
17 Sep 2021 12:00
{emayili} Rendering Plain Markdown
10 Sep 2021 12:00
{clockify} Time Tracking from R
9 Sep 2021 12:00
Setting up a Tiny HTTP Proxy
8 Sep 2021 12:00
Pre-Commit Hook for Processing README.Rmd
5 Sep 2021 12:00
{emayili} Interpolating Message Content
3 Sep 2021 12:00
Websockify with Token Target Selection
22 Aug 2021 12:00
{emayili} Rudimentary Email Address Validation
21 Aug 2021 12:00
Old ’Hood, New ’Hood
11 Aug 2021 12:00
Websockify & noVNC: Adding SSL
8 Aug 2021 12:00
Websockify & noVNC behind an NGINX Proxy
7 Aug 2021 12:00
Creating an AMI using the AWS CLI
31 Jul 2021 12:00
TomTom Traffic
27 Jul 2021 12:00
TomTom Routing
26 Jul 2021 12:00
Fixing Truncated Logs on Gitlab CI/CD
24 Jul 2021 12:00
Mobility & Unrest in South Africa
24 Jul 2021 12:00
SSH Tunnel from Docker
25 Jun 2021 12:00
Shiny on ECS
24 Jun 2021 12:00
Adding Swap Space on Ubuntu
10 Jun 2021 12:00
Scrapy with a Rotating Tor Proxy
9 Jun 2021 12:00
RAM & CPU Requirements for a Selenium Crawler
4 Jun 2021 12:00
Shiny Inception: JavaScript in Rendered Markdown
3 Jun 2021 12:00
Building an Airflow Environment in Docker
31 May 2021 12:00
Desktop in Docker
30 May 2021 12:00
Using {pagedown} in Docker
28 May 2021 12:00
AWS EC2: Setting up a Load Balancer
9 May 2021 12:00
AWS EC2: Creating a Target Group
8 May 2021 12:00
AWS Containers #8: Setting up a Service
6 May 2021 12:00
AWS EC2: Security Groups
2 May 2021 12:00
AWS Containers #4: Dependencies
28 Apr 2021 12:00
AWS Containers #5: Health Checks
28 Apr 2021 12:00
AWS Containers #3: Image on ECR
27 Apr 2021 12:00
AWS Containers #2: Defining an ECS Task
26 Apr 2021 12:00
AWS Containers #1: Creating an ECS Cluster
25 Apr 2021 12:00
Selenium Crawler #3: Docker Compose
19 Apr 2021 12:00
Selenium Crawler #2: Docker Bridge Network
18 Apr 2021 12:00
Selenium Crawler #1: Docker Host Network
17 Apr 2021 12:00
{hagr} Linnaean Classification
16 Apr 2021 12:00
{hagr} Database of Animal Ageing and Longevity
12 Apr 2021 12:00
The Easter Bunny is Cashing In
3 Apr 2021 12:00
Making the Most of Mobility
2 Apr 2021 12:00
An Environment for Reliably Rendering Figures in R
23 Mar 2021 12:00
Flexible Environment Variables for a Docker Image
22 Mar 2021 12:00
Install GitLab Runner with Docker
21 Mar 2021 02:00
{emayili} UTF-8 Filenames & Setting Sender
8 Mar 2021 12:00
Resurrecting MySQL into PostgreSQL with PGLoader
2 Mar 2021 12:00
{blogdown}: Optimise PNG Image Size
21 Feb 2021 12:00
{emayili} Sending Birthday Messages
18 Feb 2021 12:00
Setting up postref Shortcode for Remote Blog
10 Feb 2021 12:00
Launching Selenium with JavaScript Disabled
3 Feb 2021 12:00
Levies, Tax and the Fuel Price in South Africa
1 Feb 2021 12:00
This is not Rain: It’s a Trickle
30 Jan 2021 12:00
Persistent Selenium Sessions
28 Jan 2021 12:00
Cyril’s Speeches
14 Jan 2021 12:00
Topographic Maps for South Africa
12 Jan 2021 12:00
Price of Fuel in South Africa
10 Jan 2021 12:00
SQLAlchemy: Efficient Counting
9 Jan 2021 12:00
Retail Pricing: Latex Gloves
6 Jan 2021 12:00
Running History: Garmin Connect
5 Jan 2021 12:00
Retail Pricing: Nitrile Gloves
4 Jan 2021 12:00
Running History: Strava
2 Jan 2021 12:00
GitLab CI: Services
30 Dec 2020 12:00
Rendering an R Markdown Presentation to GitLab Pages
23 Sep 2020 02:00
Scrapy Ban Policies with Rotating Proxies
17 Sep 2020 02:00
Uploading CSV to MySQL
1 Sep 2020 02:00
Configuring a Development Database
30 Aug 2020 02:00
Resizing a Volume on an EC2 Linux Instance
4 Aug 2020 03:00
Shiny App in Docker with HTTP Authentication
29 Jun 2020 02:00
Retail Data: R Package
15 Mar 2020 12:00
Retail Data: Scraping & API
15 Mar 2020 12:00
R Package for
@racently
6 Dec 2019 02:00
Durban EDGE DataQuest
13 Nov 2019 02:00
An API for
@racently
12 Nov 2019 02:00
Scraping Machinery Parts
11 Nov 2019 02:00
Installing Prophet on CentOS
4 Nov 2019 02:00
Private Security and the Pareto Principle
16 Oct 2019 02:00
Tweaking Linux for Pernickety Projectors
12 Oct 2019 02:00
MySQL Backups
17 Sep 2019 02:00
R, Docker and Checkpoint: A Route to Reproducibility
28 Aug 2019 09:30
All Roads Lead to Rome
28 Jul 2019 09:30
Using Shared Memory with OSRM
26 Jul 2019 09:30
Recreating ‘Unknown Pleasures’ graphic
15 Jul 2019 02:00
Comrades Marathon (2019) Splits
1 Jul 2019 04:00
Medal Breakdown at Comrades Marathon (2019)
30 Jun 2019 02:30
Comrades Marathon (2019) Start Delay
15 Jun 2019 02:30
A Shiny Comrades Marathon Pacing App
4 Jun 2019 02:30
{emayili} Sending Email from R
27 May 2019 05:00
Setting up an R Admin Group
11 Apr 2019 03:30
Sliding Puzzle Solvable?
10 Apr 2019 02:30
Integrating Qlik Sense and R
26 Mar 2019 02:30
satRday (Paris) 2019
25 Feb 2019 10:30
Docker Images for R: r-base versus r-apt
21 Jan 2019 04:00
RServe: Getting Started
21 Jan 2019 04:00
JSON Payload for POST Request
10 Jan 2019 04:00
Where does .Renviron live on Citrix?
8 Jan 2019 04:00
Survey Raking: An Illustration
26 Dec 2018 04:00
Citrix Receiver on Ubuntu
14 Dec 2018 10:00
Scraping the Turkey Accordion
12 Dec 2018 02:00
RStudio & Shiny Servers with NGINX & SSL
14 Nov 2018 02:00
Installing RStudio & Shiny Servers
13 Nov 2018 02:00
Accessing Open Data from AWS
4 Nov 2018 02:00
Embedding Dependencies into a HTML File
31 Oct 2018 02:00
DNS on Ubuntu
25 Oct 2018 04:30
@pyconza
(2018): Data Science and Bayes with Python
15 Oct 2018 06:00
Docker Images for Spark
28 Sep 2018 02:00
MySQL Server Replication using Binary Logs
17 Sep 2018 02:00
DIY VPN with Docker
11 Sep 2018 05:00
Refining an AWS IAM Policy for Flintrock
8 Sep 2018 02:00
Diagnosing RStudio Startup Issues
7 Sep 2018 02:00
Chairing a Conference Session
9 Aug 2018 02:00
Setup for using Stan with Julia
25 Jul 2018 03:30
Updating R on Ubuntu
9 Jul 2018 01:00
eRum (2018) Top Twenty
18 May 2018 04:30
Travelling Salesman with ggmap
10 May 2018 11:00
Classification: Get the Balance Right
21 Apr 2018 01:00
Workshop: Web Scraping with R
12 Apr 2018 01:00
Tips for Lightning Talks
6 Apr 2018 07:30
Restoring a Django Backup
23 Feb 2018 10:00
Installing DataGrip on Ubuntu
16 Feb 2018 08:00
SQL Server from Ubuntu
5 Feb 2018 08:00
Linux VM on Azure
5 Feb 2018 07:00
Installing rJava
5 Feb 2018 07:00
Ethereum: DIY Tools for Smart Contracts
19 Jan 2018 03:30
Ethereum: Running a Node
19 Jan 2018 03:30
NTP: Synchronise Your Watches
11 Jan 2018 04:30
An Ethereum Package for R
7 Jan 2018 08:00
Moving a Running Process to screen
30 Dec 2017 04:00
Creating an Amazon Machine Image
4 Dec 2017 03:00
Using Large Maps with OSRM
27 Nov 2017 07:00
EC2 Missing Disk Space
23 Nov 2017 07:30
Variable Names: Camel Case to Underscore Delimited
20 Nov 2017 04:30
Analysis of Feedback from satRday [Cape Town] 2017
15 Nov 2017 03:30
Durban Twitter Analysis
10 Nov 2017 12:00
Running OSRM with Docker
7 Oct 2017 07:00
Installing NVIDIA Graphics Driver on Ubuntu
7 Oct 2017 07:00
Exporting HTML Presentations to PDF
5 Oct 2017 07:00
Quick WordPress Install with Docker
22 Sep 2017 11:00
Diagnosing Killed Jobs on EC2
21 Sep 2017 08:30
Removing Redundant Hostnames with NGINX
15 Sep 2017 09:00
Creating a S3 Bucket
14 Sep 2017 05:00
Installing Docker on Ubuntu
14 Sep 2017 05:00
Hosting a Plumber API on AWS
14 Sep 2017 04:00
Creating an AWS Spot Instance
13 Sep 2017 08:30
Building a Local OSRM Instance
11 Sep 2017 08:30
Global Variables in R Packages
7 Sep 2017 02:30
Driving AWS from the Command Line
31 Aug 2017 11:00
Route Asymmetry in Google Maps
23 Aug 2017 04:00
Retrieve Kaggle Data from the Command Line
21 Aug 2017 11:00
Setting Up Time Zones in BASH
20 Aug 2017 05:00
Setting Up Time Zones in MySQL
20 Aug 2017 05:00
Adding a Volume to an Ubuntu EC2 Instance
10 Aug 2017 03:00
Remote Desktop on an Ubuntu EC2 Instance
8 Aug 2017 03:00
A Timeline History of R
5 Aug 2017 01:00
Adding Users to an EC2 Ubuntu Instance
24 Jul 2017 01:00
Docker: Persisting User Data
20 Jul 2017 03:30
Deploying Jupyter on AWS using Docker
18 Jul 2017 04:00
RStudio Environment on DigitalOcean with Docker
11 Jul 2017 04:00
Installing Hadoop on Ubuntu
4 Jul 2017 09:30
Installing Spark on Ubuntu
4 Jul 2017 09:30
Accessing PySpark from a Jupyter Notebook
4 Jul 2017 12:00
Increasing MySQL Packet Maximum Size
1 Jul 2017 05:30
Setting up ExpressVPN on Ubuntu
23 Jun 2017 07:00
Setting up Jupyter with Python 3 on Ubuntu
23 Jun 2017 05:00
Deploying a Minimal Plumber API on DigitalOcean
21 Jun 2017 09:45
RSelenium and Java Heap Space
9 Jun 2017 05:45
Clustering Time Series Data
25 Apr 2017 12:00
Bulgaria Web Summit
16 Apr 2017 08:00
Bayesian Marathon Predictions
28 Feb 2017 08:22
Amazon is Getting Inside my Head
26 Feb 2017 08:22
Google Quick, Draw!
17 Nov 2016 03:00
Simple School Maths Problem
15 Nov 2016 01:21
satRday Cape Town: Call for Submissions
26 Oct 2016 03:18
fast-neural-style: Real-Time Style Transfer
7 Oct 2016 03:00
Fitting a Statistical Distribution to Sampled Data
5 Oct 2016 03:00
Python: First Steps with MongoDB
28 Sep 2016 03:00
Chrome Developer Tools: Throttling Connection
20 Sep 2016 08:21
Chrome Developer Tools: View POST Data
19 Sep 2016 03:00
Deleting All Nodes and Relationships
15 Sep 2016 03:00
Remote Access to Neo4j on Windows
13 Sep 2016 03:00
Installing Neo4j on Ubuntu
6 Sep 2016 12:00
PLOS Subject Keywords: Association Rules
1 Sep 2016 03:00
ubeR: A Package for the Uber API
31 Aug 2016 06:00
PLOS Subject Keywords: Gathering Data
24 Aug 2016 03:00
Sportsbook Betting (Part 3): Evolving Odds
23 Aug 2016 03:00
Garmin ANT on Ubuntu
22 Aug 2016 03:00
Anthony Goldbloom: The jobs we’ll lose to machines
22 Aug 2016 03:00
Sportsbook Betting (Part 2): Bookmakers’ Odds
10 Aug 2016 03:00
Animated Mortality
9 Aug 2016 03:00
feedeR: Reading RSS and Atom Feeds from R
8 Aug 2016 03:00
Web Scraping and “invalid multibyte string”
2 Aug 2016 03:00
Sportsbook Betting (Part 1): Odds
1 Aug 2016 03:00
Arthur Benjamin: Teach statistics before calculus!
29 Jul 2016 03:00
Building a Life Table
28 Jul 2016 03:00
Calculating Pi using Buffon’s Needle
26 Jul 2016 03:00
Conrad Wolfram: Teaching kids real math with computers
25 Jul 2016 03:00
Mortality by Year and Age
22 Jul 2016 03:00
Life Expectancy by Country
20 Jul 2016 04:00
Mortality Rate by Age
19 Jul 2016 04:00
Escalating Life Expectancy
18 Jul 2016 04:00
Birth Month by Gender
16 Jul 2016 05:00
Most Probable Birth Month
15 Jul 2016 04:49
Streaming from zip to bz2
8 Jul 2016 12:12
Major League Baseball Birth Months
5 Jul 2016 05:00
satRday in Cape Town
26 May 2016 03:03
R Saturday [satRday] in Cape Town
12 May 2016 09:06
The Next Rembrandt
6 Apr 2016 07:46
International Open Data Day
5 Mar 2016 03:01
R, HDF5 Data and Lightning
23 Feb 2016 03:00
Ira Glass on the Creative Process
12 Feb 2016 03:00
Automating R scripts under Windows
11 Feb 2016 07:33
flipsideR: Support for ASX Option Chain Data
8 Feb 2016 03:00
Kaggle: Santa’s Stolen Sleigh
22 Jan 2016 03:00
Lawyers and Politics
20 Jan 2016 08:22
Casting a Wide (and Sparse) Matrix in R
19 Jan 2016 11:22
Kaggle: Walmart Trip Type Classification
15 Jan 2016 03:00
MongoDB: Installing on Windows 7
13 Jan 2016 01:10
Mastering Python Scientific Computing
11 Jan 2016 03:00
Review: Learning Shiny
5 Jan 2016 03:00
Using Checksum to Guess Message Length: Not a Good Idea!
22 Dec 2015 03:00
Making Sense of Logarithmic Loss
14 Dec 2015 03:00
Installing XGBoost on Ubuntu
9 Dec 2015 03:00
2015 Data Science Salary Survey
4 Dec 2015 03:00
Evolution of First Names: Unisex Names and Nicknames
23 Nov 2015 03:00
Evolution of First Names: Fashionable and Popular Names
16 Nov 2015 03:00
Graph from Sparse Adjacency Matrix
12 Nov 2015 03:00
First Names Evolution: Changes over Last Century
9 Nov 2015 03:00
LIBOR and Bond Yields
6 Nov 2015 03:00
Guy Kawasaki on Personal Branding
3 Nov 2015 03:00
Day 38: Imaging
30 Oct 2015 03:00
Day 37: Fourier Techniques
26 Oct 2015 03:00
Day 36: Markdown
19 Oct 2015 03:00
Beautiful Data
15 Oct 2015 04:00
Day 35: Mapping
15 Oct 2015 03:00
Day 34: Networking
13 Oct 2015 03:00
Installing LightTable and Juno on Ubuntu
12 Oct 2015 03:30
Day 33: Evolutionary Algorithms
12 Oct 2015 03:00
Day 32: Classification
9 Oct 2015 03:00
Day 31: Regression
8 Oct 2015 03:00
Day 30: Clustering
7 Oct 2015 03:00
Data Mining with Rattle and R
7 Oct 2015 12:30
Day 29: Distances
6 Oct 2015 03:00
Day 28: Hypothesis Tests
5 Oct 2015 03:00
Day 27: Distributions
2 Oct 2015 03:00
Day 26: Statistics
1 Oct 2015 03:00
Day 25: Interfacing with Other Languages
30 Sep 2015 03:00
Day 24: Graphs
29 Sep 2015 03:00
Day 23: Data Structures
28 Sep 2015 03:00
Day 22: Optimisation
25 Sep 2015 03:00
Day 21: Differential Equations
24 Sep 2015 04:00
Day 20: Calculus
23 Sep 2015 02:00
Day 19: Units of Measurement
22 Sep 2015 04:00
Day 18: Plotting
21 Sep 2015 04:00
PhysicalConstants.jl: Julia Package of Physical Constants
21 Sep 2015 03:00
Day 17: Datasets from R
18 Sep 2015 03:56
Day 16: Databases
17 Sep 2015 04:00
Setting up ODBC for SQLite on Ubuntu
17 Sep 2015 05:39
Day 15: Time Series
16 Sep 2015 02:00
Day 14: DataFrames & DataArrays
15 Sep 2015 01:00
urlshorteneR: A package for shortening URLs
14 Sep 2015 05:00
Day 13: Packages
14 Sep 2015 01:00
Day 12: Parallel Processing
11 Sep 2015 01:00
Day 11: Metaprogramming
10 Sep 2015 02:00
A ggplot2 oddity
10 Sep 2015 12:32
Day 10: Modules
9 Sep 2015 01:00
Day 9: Input/Output
8 Sep 2015 05:30
Day 8: Iteration, Conditionals and Exceptions
7 Sep 2015 05:29
Day 7: Functional Programming
6 Sep 2015 02:06
Day 6: Composite Types
5 Sep 2015 04:10
Day 5: Collections
4 Sep 2015 08:23
Day 4: Functions
3 Sep 2015 06:01
Day 3: Variables and Data Types
2 Sep 2015 02:44
Day 2: Development Environments
1 Sep 2015 05:28
Day 1: Installation and Orientation
31 Aug 2015 07:32
Shiny Bayesian Updates
24 Jul 2015 12:13
Lightning on your Twitter Feed
13 Jul 2015 02:00
Constructing a Word Cloud for ICML 2015
10 Jul 2015 09:30
ICML 2015 (Lille, France): Day 5 (Workshops)
10 Jul 2015 07:10
ICML 2015 (Lille, France): Day 4
10 Jul 2015 09:38
ICML 2015 (Lille, France): Day 3
8 Jul 2015 04:42
ICML 2015 (Lille, France): Day 2
8 Jul 2015 07:30
ICML 2015 (Lille, France): Day 1 (Tutorials)
7 Jul 2015 07:08
Machine Learning with R Cookbook
3 Jul 2015 02:36
Flashes from the Ashes: Volcanic Lightning
3 Jul 2015 12:32
Excel: Copying with Relative Links
26 Jun 2015 12:25
Disney: Quality over Quantity
15 Jun 2015 02:03
R Recipe: RStudio and UNC Paths
4 Jun 2015 09:44
Hosting Shiny on Amazon EC2
30 May 2015 11:41
Comrades Marathon Medal Predictions
28 May 2015 07:52
R Recipe: Aligning Axes in ggplot2
27 May 2015 06:14
R Recipe: Reordering Columns in a Flexible Way
16 May 2015 06:20
Recent Common Ancestors: Simple Model
15 May 2015 11:35
R Recipe: Making a Chord Diagram
9 May 2015 03:07
Comrades Marathon Finish Predictions
23 Apr 2015 12:06
Comrades Runners Disqualified: I’m Not Convinced
16 Apr 2015 11:16
Encyclopaedia: Meteorites in Antarctica
13 Apr 2015 09:00
A Sankey Plot with Uniform Coloured Edges
7 Apr 2015 11:16
Encyclopaedia: Discovery Expedition
6 Apr 2015 09:00
Bags, Balls and the Hypergeometric Distribution
3 Apr 2015 09:00
Comrades Marathon Pacing Chart: Up Run
1 Apr 2015 01:07
The Price of Fuel: How Bad Could It Get?
1 Apr 2015 09:00
Encyclopaedia: Geospace
30 Mar 2015 09:00
Encyclopaedia: Scottish National Antarctic Expedition
23 Mar 2015 09:00
Encyclopaedia: SANAE IV
16 Mar 2015 09:00
Dealing with a Byte Order Mark (BOM)
11 Mar 2015 09:00
Graph Databases
9 Feb 2015 09:00
R for Business Analytics
28 Jan 2015 10:50
Downloading Options Data in R: An Update
14 Jan 2015 05:30
Simulating Intricate Branching Patterns with DLA
16 Dec 2014 09:31
Creating More Effective Graphs
4 Nov 2014 12:25
Standard Bank: Striving for Mediocrity
7 Oct 2014 03:32
Plotting Flows with {riverplot}
14 Aug 2014 12:58
Commitments of Traders: Moves in the Last Week
9 Aug 2014 10:46
Whistlers and Volcanic Lightning
30 Jul 2014 12:42
Comrades Marathon: A Race for Geriatrics?
22 Jul 2014 05:11
Where to Put EAs and Indicators in New MT4 Builds
20 Jul 2014 07:42
Comrades Marathon Negative Splits: Cheat Strikes Again
16 Jul 2014 09:00
Twins, Tripods and Phantoms at the Comrades Marathon
12 Jun 2014 12:33
Concatenating a list of data frames
6 Jun 2014 01:16
Comrades Marathon Pacing Chart: Down Run
28 May 2014 04:24
What Can We Learn from the Commitments of Traders Report?
21 May 2014 12:21
Race Statistics for Comrades Novices: Corrigendum
17 May 2014 03:12
Race Statistics for Comrades Marathon Novice Runners
16 May 2014 05:22
Hazardous & Benign Objects: Solar-Ecliptic Orbits
12 May 2014 10:38
Comrades Marathon Negative Splits: The Plot Thickens
10 May 2014 03:05
Hazardous & Benign Objects: Kepler’s Equation
8 May 2014 11:45
Comrades Marathon: Negative Splits and Cheating
6 May 2014 10:17
Hazardous & Benign Objects: Getting the Data
28 Apr 2014 10:33
R Interface to Myfxbook
17 Apr 2014 11:16
Earthquakes: Land / Ocean Distribution
13 Apr 2014 10:22
Largest Volcanoes & Other Statistics
11 Apr 2014 11:55
Earthquakes: Magnitude / Depth Chart
7 Apr 2014 12:19
Daylight Saving Effect on Financial Indices
1 Apr 2014 11:47
Filtering Data with L1 Regularisation
27 Mar 2014 12:39
Filtering Data with L2 Regularisation
25 Mar 2014 10:58
How Long to Conceive?
12 Jan 2014 04:33
Processing EXIF Data
16 Dec 2013 05:13
Updated Comrades Winners Chart
14 Dec 2013 03:42
Contour and Density Layers with ggmap
14 Dec 2013 05:45
Amy Cuddy: Your body language shapes who you are
27 Nov 2013 02:00
Deriving a Priority Queue from a Plain Vanilla Queue
26 Nov 2013 05:48
Implementing a Queue as a Reference Class
24 Nov 2013 12:18
Iterators in R
14 Nov 2013 04:20
Introduction to Fractals
4 Nov 2013 05:37
Percolation Threshold: Including Next-Nearest Neighbours
1 Nov 2013 11:26
Percolation Threshold on a Square Lattice
30 Oct 2013 05:38
Plotting Times of Discrete Events
19 Oct 2013 09:01
Mounting a sshfs volume via the crontab
6 Oct 2013 06:28
Top 250 Movies at IMDb
3 Oct 2013 05:23
Flushing Live MetaTrader Logs to Disk
18 Sep 2013 04:26
Clustering the Words of William Shakespeare
10 Sep 2013 11:27
MetaTrader Time Zones
9 Sep 2013 02:43
Text Mining the Complete Works of William Shakespeare
5 Sep 2013 11:41
Presenting Conformance Statistics
27 Aug 2013 11:33
The Wonders of {foreach}
25 Aug 2013 10:17
Fitting a Model by Maximum Likelihood
18 Aug 2013 04:57
Correlations with Uncertainty: Classical Solution
13 Aug 2013 01:40
Correlations with Uncertainty: Bootstrap Solution
11 Aug 2013 09:50
Finding Your MetaTrader Log Files
8 Aug 2013 03:33
A Chart of Recent Comrades Marathon Winners
30 Jul 2013 03:54
Comrades Marathon Inference Trees
19 Jul 2013 07:55
Optimising a Noisy Objective Function
16 Jul 2013 05:07
Compiling Indicators and Expert Advisors
25 Jun 2013 06:41
Are Green Number Runners More Likely to Bail?
22 Jun 2013 03:07
The Green Number Effect
18 Jun 2013 02:25
Age Distribution of Comrades Marathon Athletes
18 Jun 2013 11:06
Medal Allocations at the Comrades Marathon
9 Jun 2013 05:53
Comrades Marathon Attrition Rate
7 Jun 2013 06:58
Analysis of Cable Morning Trade Strategy
29 May 2013 11:20
Balanced Data with {MatchIt}
23 May 2013 03:08
xkcd Style Bubble Plot
23 May 2013 12:12
Swing Alert Indicator
23 May 2013 03:53
Package {party}: Conditional Inference Trees
21 May 2013 11:13
Plotting categorical variables
20 May 2013 01:08
Plotting numerical variables
18 May 2013 10:38
Descriptive Statistics
18 May 2013 09:53
Categorical Variables
12 May 2013 08:14
Loading Data from a Tab Delimited File
12 May 2013 07:48
Support & Resistance Indicator
6 May 2013 08:56
Locations of Geosynchronous Satellites
16 Apr 2013 02:16
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