1 Introduction

This bookdown contains documents for UCL R user group meeting talk (25/3/2021). It aims to introduce some methods on how to work with large datasets in R. The datasets used in this talk are not allowed to be used commercially. They must be shared on the same terms as the data were originally obtained.

By the end of the talk you will have:

• Read large CSV files together
  
  
• Tried basic big data munging/wrangling
  
  
• Worked with PostGIS database in R
  
  
• Measured code performance
  
  
• Executed R code in Alteryx