Mfuzz (version 2.32.0)

filter.std: Filtering of genes based on their standard deviation.

Description

This function can be used to exclude genes with low standard deviation.

Usage

filter.std(eset,min.std,visu=TRUE)

Arguments

eset

object of the class ExpressionSet.

min.std

threshold for minimum standard deviation. If the standard deviation of a gene's expression is smaller than min.std the corresponding gene will be excluded.

visu

If visu is set to TRUE, the ordered standard deviations of genes' expression values will be plotted.

Value

ExpressionSet class. It is the same as the input eset object, except for the genes excluded.

Examples

data(yeast) # data set includes 17 measurements
yeastF <- filter.NA(yeast) # filtering of genes based on missing values 
yeastF <- filter.std(yeastF,min.std=0.3) # filtering of genes based on standard deviation