Git Under the Hood
touch file_x rm -rf .git file_* subdir library(tidyverse) ## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.1 ── ## ✓ ggplot2 3.3.5 ✓ purrr 0.3.4 ## ✓ tibble 3.1.6 ✓ dplyr 1.0.8 ## ✓ tidyr 1.
Read more…A Noisy Wind Tunnel
I raced bikes as a junior and came back to it after a twenty year hiatus. One of the biggest contrasts I’ve seen in the sport is the proliferation of bike sensors.
Read more…A Tale Of Two Optimisations
A couple of months ago I wrote a toy program called whitespacer. Ever since, I’ve had this gnawing feeling that I could have done it better; that it could have been written in a more performant manner.
Read more…Bandwidth Seasonal Decomposition
Over the past few months I’ve been studying time series data and modelling using Rob Hyndman’s fantastic Forecasting: Principles and Practice textbook. My area of expertise is in networking, and a significant amount of operational the data that we deal with fits into the category of time series data.
Read more…Whitespacer
A few weeks ago I was analysing some packet captures and thanking the RFC gods that HTTP - and many other protocols - use ASCII/UTF-8 rather than packing everything into binary.
Read more…What the #!
Working with computers you take a lot for granted. You assume your press of the keyboard will bubble up through the kernel to your terminal, your HTTP request will remain intact after travelling halfway across the globe, and that your stream of a cat video will be decoded and rendered on your screen.
Read more…A Bit on the Nose
I’ve never been particularly interested in horse racing, but I married into a family that loves it. Each in-law has their own ideas and combinations of factors that lead them to bet on a particular horse.
Read more…AFL Bets - Analysing the Halftime Payout
If you’ve watched AFL over the past few years, you would have noticed betting companies spruiking a cornucopia of betting options. In fact it would be hard for you not to notice, given the way they yell at you down the television screen.
Read more…Simulating Snakes and Ladders
For the past couple of months my family and I - like the rest of the world - have been in isolation due to the coronavirus. My eldest son Ned is 5 years old and is interested in games and puzzles at moment, so these have been a key tool in reducing the boredom of lockdown.
Read more…Packet Analysis with R (Part 1)
As a network security consultant I’ve spent a my fair share of time trawling through packet captures, looking for that clue or piece of evidence I hope will lead me to the root cause of a problem.
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