Data cleaning

Precleaning

Precleaning data formats (float32 for nums)

Standardising file types

Joining data sets

Consistent variable naming

Concatenating data

Joining data

Checking for consistency

Cross-consistency

Data shaping

Wide and long data

Introduction

Collapsing data

Dropping variables

Sensitive information

Dropping unnecessary information, like names and derived variables

Dropping unnecessary information, like names and derived variables

Creating interactive terms

Deciling continuous data