R: Snakes and ladders markov chain

A few days ago I read a really cool blog post explaining how Markov chains can be used to model…

Read More »

R: Weather vs attendance at NoSQL meetups

A few weeks ago I came across a tweet by Sean Taylor asking for a weather data set with a…

Read More »

R: Featuring engineering for a linear model

I previously wrote about a linear model I created to predict how many people would RSVP ‘yes’ to a meetup…

Read More »

R: Vectorising all the things

After my last post about finding the distance a date/time is from the weekend Hadley Wickham suggested I could improve…

Read More »

R: Time to/from the weekend

In my last post I showed some examples using R’s lubridate package and another problem it made really easy to…

Read More »

R: Cleaning up and plotting Google Trends data

I recently came across an excellent article written by Stian Haklev in which he describes things he wishes he’d been…

Read More »

R: Applying a function to every row of a data frame

In my continued exploration of London’s meetups I wanted to calculate the distance from meetup venues to a centre point…

Read More »

R: A first attempt at linear regression

I’ve been working through the videos that accompany the Introduction to Statistical Learning with Applications in R book and thought…

Read More »

R: Calculating rolling or moving averages

I’ve been playing around with some time series data in R and since there’s a bit of variation between consecutive…

Read More »