# Variables & Variable Sets

### Modifying Variables & Variable Sets

- How to Troubleshoot Common Problems in Displayr and also some FAQs about Variables and Variable Sets
- How to Add a Category for the Value Attributes Using the API
- How to Calculate an Average Value from Categorical Data in Displayr
- How to Delete Variables from Your Data Set
- How to Combine Variables into a Variables Set

### Automatic Functions to Create New Variables

- How to Combine Variable Sets as a Grid
- How to Flatten Variable Sets
- How to Create New Binary Variable(s)
- How to Rebase Multiple Response Data in Variable(s) to NET
- How to Recode Numeric Variable(s) from Code/Category Midpoints

### Weights

### Scale Variables

- How to Scale Variable(s) to Unit Interval Within Variable
- How to Scale Variable(s) to Center Within Variable
- How to Scale Variable(s) to Ranks Within Variable
- How to Scale Variable(s) to Standardize Within Variable
- How to Scale Variable(s) to Unit Interval Within Case

### R Variables

- How to Create Dynamic Period Variables based on a Control
- How to Create a Custom Numeric R Variable
- How to Create a Custom R Text Variable
- How to Perform Mathematical Calculations on Variables
- How to Easily Convert Strings to Times and Dates in R with flipTime

### JavaScript Variables