FeatureEngineering.R

## Feature Engineering

## First, import data via xgboost_starter.R (until line 139)

existing_features <- colnames(data)

existing_features

## mainly two categories:
## 1. user specific (total orders, total reordered ratio...)
## 1.1. user product-specific (product orders...)
## 2. product specific (total orders, percentage reordered)