A look back at the most interesting or tricky problems in this annual programming challenge.
The Advent of Code is a series of daily programming puzzles running up to Christmas.
Find bugs as soon as you create them, and implement automated testing in your analysis.
Introduction to web scraping and how it can be used to gather online data for research.
Confirmatory factor analysis, path analysis and structural equation models in R.
Shiny is a tool for creating interactive dashboards and web apps from R.
Introduction to Stan, rstan and brms for multi-level Bayesian regession modelling.
Step by step guide on using GitHub and RStudio for collaborative analysis.
Tips on data manipulation with the packages data.table, dplyr and tidyr, including reshaping data, creating lagged variables and preparing data for survival analysis.
A philosophy for data visualisation, based on the foundations formalised in Leland Wilkinson's seminal book, now implemented in various software packages.
Tips and tricks for generating tabular summaries efficiently and reproducibly using R.
R Markdown is a tool for generating richly documented, reproducible analyses. This worksheet introduces the basic steps in creating an R Markdown document.
R-thritis is the R user group at the Centre for Epidemiology Versus Arthritis.