Subset a matrix

subset_cpp(m1in, rowidx_in, colidx_in)

Arguments

m1in	an R matrix (expression matrix)
rowidx_in	a numeric vector of rows to keep
colidx_in	a numeric vector of columns to keep

Value

a subsetted matrix

Examples

mat_test <-matrix(rnbinom(1000000,mu=0.01, size=10),nrow=100)
subset_mat <- subset_cpp(mat_test, rowidx_in=c(1:10), colidx_in=c(100:500))
dim(subset_mat)
#> [1]  10 401