You can install the development version from GitHub with:

```
# install.packages("devtools")
::install_github("ylleonv/GLMcat") devtools
```

We introduce and illustrate GLMcat, the R package we developed to
estimate generalized linear models implemented under the unified
specification (*r*,*F*,*Z*), where *r*
represents the ratio of probabilities (reference, cumulative, adjacent
or sequential), *F* the cumulative cdf function for the linkage,
and *Z* the design matrix. We present the properties of the four
families of models, which must be investigated when selecting the
components *r*, *F*, and *Z*. The functions are
user-friendly and fairly intuitive; offering the possibility to choose
from a large range of models through a combination
(*r*,*F*,*Z*).