wrMisc (version 1.15.3.1)

.rowGrpMeans: row group mean (main)

Description

This function calculates CVs for matrix with multiple groups of data, ie one CV for each group of data.

Usage

.rowGrpMeans(x, grp, na.replVa = NULL, na.rm = TRUE)

Value

This function returns a matrix of mean values per row and group of replicates

Arguments

x

numeric matrix where relplicates are organized into separate columns

grp

(factor) defining which columns should be grouped (considered as replicates)

na.replVa

(numeric) value to replace NA values

na.rm

(logical) remove all NA values

See Also

rowGrpCV, rowCVs, arrayCV, replPlateCV

Examples

set.seed(2016); dat1 <- matrix(c(runif(200)+rep(1:10,20)),ncol=10)
grp1 <- gl(4,3,labels=LETTERS[1:4])[2:11]
head(.rowGrpMeans(dat1, grp1))