cro: Creates a minimal representation of a data frame.
Description
Given a data frame with a defined response variable, this function
creates a unique representation of the covariates in the data frame,
vector (matrix) of responses, and a pointer vector, connecting the
responses with the corresponding covariates.
Usage
cro(dat, response=1)
Arguments
dat
A data frame
response
The column(s) where the response resides.
Value
A list with components
Details
The rows in the data frame are converted to text strings with
paste and compared with match.