Combine two matrices and emit warning if no regions are in common

Source: R/preprocessing_filtering_reduction.R

Combine two matrices and emit warning if no regions are in common

combine_datamatrix(datamatrix, datamatrix_single, file_names, i)

Arguments

datamatrix

A sparse matrix or NULL if empty
datamatrix_single

Another sparse matrix
file_names

File name corresponding to the matrix for warnings
i

file number

Value

A combined sparse matrix