R2MLwiN (version 0.8-2)

Untoggle: Converts a categorical variable into several separate binary variables

Description

This function converts a vector (factor) of categorical character strings (integers) into several separate vectors of binary indicators to enable back-compatibility with versions of R2MLwiN prior to 0.8-0.

Usage

Untoggle(categrv, name = NULL)

Arguments

categrv

A vector (factor) of categorical character strings (integers).

name

A character string specifying a name of a prefix to be appended the categories when generating dummy variables. If NULL, v__ is used as a prefix.

Value

A matrix containing the generated dummy variables.

Examples

## Not run: 
# library(R2MLwiN)
# # NOTE: Assumes MLwiN path is C:/Program Files (x86)/MLwiN v2.30/
# # ...so please change relevant line if different
# # if using R2MLwiN via WINE, the path may look like
# # options(MLwiN_path='/home/USERNAME/.wine/drive_c/Program Files (x86)/MLwiN v2.30/')
# 
# # Example: tutorial
# data(tutorial)
# names(tutorial)
# tutorial = cbind(tutorial, Untoggle(tutorial$school, 'school'))
# names(tutorial)
# ## End(Not run)