added support for dgTmatrix

[eweine]

No description provided.

[pcarbo]

Hi @eweine, can you make a couple changes?

1. Change the description of the "Y" input argument in the roxygen2 docs (currently it says, "It can be a sparse matrix (class "dgCMatrix")…"

2. Add a couple tests to test_fit_glmpca_pois.R to check that the results are the same different types of sparse matrix. You could add a matrix of class "dgTMatrix" (since this is what motivated this change initially). It might also be good to try a "dgRMatrix" matrix ("sparse, compressed, row-oriented numeric matrix").

[pcarbo]

Not sure if you know these commands, but you may find them useful for looking up info on the different matrix classes in the Matrix package:

showClass("dsparseMatrix")
showClass("dgTMatrix")
help("dgTMatrix-class")

[eweine]

Ok @pcarbo I've made the changes you've suggested above. This should be good to go.