step_poisson_matric_factorization()

[EmilHvitfeldt]

https://cran.r-project.org/web/packages/poismf/index.html

[topepo]

I've also been looking at similar methods for binary data. Some references:

• A logistic non-negative matrix factorization approach to binary data sets
• Probabilistic visualisation of high-dimensional binary data
• Probabilistic principal component analysis
• A Generalized Linear Model for Principal Component Analysis of Binary Data

I'm sure that there are some R packages for at least one of these.