stat.gnames {marray}R Documentation

Sort Genes According to the Value of a Statistic


Lists genes and corresponding statistics in decreasing order of the statistics. This function applies to any type of statistic, including log ratios, one and two-sample t-statistics, and F-statistics. Missing values are ignored, as in sort(..., na.last=NA).


stat.gnames(x, gnames, crit= 50)


x a numeric vector containing the statistics for each gene. Missing values (NAs) are allowed.
gnames a character vector containing the gene names.
crit specifies the number of genes to be returned. If crit < 1, the crit*100% genes with the largest x values are listed. If crit >= 1, the crit genes with the largest x values are listed.


List containing the following components

gnames gene names sorted in decreasing order of the statistics in x.
t statistics sorted in decreasing order.


Yee Hwa Yang,
Sandrine Dudoit,

See Also

order, sort.


aveM <- apply(maM(swirl), 1,
Gnames <- maGeneTable(swirl)

stat.gnames(abs(aveM), Gnames, crit=10)
stat.gnames(aveM, Gnames, crit=0.01)

[Package marray version 1.8.0 Index]