Convert Sparse Matrix to Full Matrix - R

Question

Am I looking for an efficient way to convert a huge sparse matrix into a full matrix (and not a data frame) in R?

Any idea?

Thank.

+4

Esther silva Jun 11 '16 at 13:42

1 answer

akrun · Accepted Answer · 2016-06-11T13:43:51+0000

We can use as.matrix

m1 <- as.matrix(sM)

where sMis the sparse matrix.

We can check methods

grep("as.matrix", methods(class = "sparseMatrix"), value = TRUE)
#[1] "as.matrix,Matrix-method"