Row-wise rescaling of a matrix to relative frequencies

Divides each row by its row sum so that every row sums to 1 (leaving dimnames intact).

Usage

rescale_matrix(m)

Arguments

m

Numeric matrix; rows are biological identities, columns are time bins (i.e., time resources).

Value

A numeric matrix of the same dimension with each row summing to 1. Rows with a zero sum are left unchanged (resulting in NaN if present).

Examples

ex1_rescale <- rescale_matrix(ex1)
rowSums(ex1_rescale)
#> spp1 spp2 spp3 spp4 spp5 
#>    1    1    1    1    1