McCullagh_initialize_x: Initialize design matrix for location model.
Description
This is the simplest possible implementation, that fits thresholds
and a single group contrast. More complex problems will implement
the matrix X themselves.
Usage
McCullagh_initialize_x(s, c, v)
Arguments
- s
number of levels of stratification variable
- c
number of score levels
- v
number of predictors above thresholds