- Introduction to recipes
Start here if this is your first time using recipes! You will learn about basic usage, steps, selectors, and checks.
- Handling categorical predictors
This vignette describes different methods for encoding categorical predictors, with special attention to interaction terms and contrasts.
- Selecting variables
You can select which variables or features should be used in recipes. This vignette goes over the basics of using selection functions.
- Roles in recipes
In recipes, roles provide a way to select variables for different steps.
- On skipping steps
In recipes, steps are usually applied to both the training and testing sets. However, in some situations we only want to only apply a step to the training data and we want to skip that step on testing data.
- Ordering of steps
The order in which recipe steps are specified matters, and this vignette gives some general suggestions that you should consider.