To install the CRAN version, use :


To get the most recent update, install it from github :



The complete documentation is available on the lcmm website, along with vignettes for each of the main estimating function of the package.

A detailed companion paper is also available in Journal of Statistical Software :

Proust-Lima C, Philipps V, Liquet B. Estimation of Extended Mixed Models Using Latent Classes and Latent Processes: The R Package lcmm. Journal of Statistical Software, Articles. 2017;78(2):1-56.

And specific statistical models estimated are described in various statistical papers of the authors.


Issues and questions about the use of the lcmm package are reported on the github issue page Please check both opened and closed issues to make sure that the topic has not already been treated before creating a new issue. To report a bug, please provide a reproducible example.