Group-centering of one or more variables
Usage
group_center(variables, group, data, std = FALSE, prefix = "g.")
Arguments
- variables
Character vector of variables names
- group
Character of length 1,name of grouping variable
- data
Data frame
- std
Logical. Should the variable be standardized (divided by its std. deviation)?
- prefix
Character, added to the befinning of centered variable name.
Value
Returns an original data frame binded with the new centered variables
