| seqHMM {seqHMM} | R Documentation |
The seqHMM package
Description
The seqHMM package is designed for fitting hidden (or latent) Markov models (HMMs) and mixture hidden Markov models (MHMMs) for social sequence data and other categorical time series. The package supports models for one or multiple subjects with one or multiple interdependent sequences (channels). External covariates can be added to explain cluster membership in mixture models. The package provides functions for evaluating and comparing models, as well as functions for easy plotting of multichannel sequences and hidden Markov models. Common restricted versions of (M)HMMs are also supported, namely Markov models, mixture Markov models, and latent class models.
Details
Maximum likelihood estimation via the EM algorithm and direct numerical maximization with analytical gradients is supported. All main algorithms are written in C++. Parallel computation is implemented via OpenMP.
References
Helske S. and Helske J. (2019). Mixture Hidden Markov Models for Sequence Data: The seqHMM Package in R, Journal of Statistical Software, 88(3), 1-32. doi:10.18637/jss.v088.i03