bmrm (version 4.1)

rowmean: Columun means of a matrix based on a grouping variable

Description

Similar to rowsum, but for mean values.

Usage

rowmean(x, group, ...)

Arguments

x

a matrix

group

a factor with one element per row of x

...

additional arguments are passed to rowsum()

Value

a matrix containing the means, with one row per level of group.