rowQ: A function to compute empirical row quantiles.

In Biobase: Biobase: Base functions for Bioconductor

Description

This function computes the requested quantile for each row of a matrix, or of an ExpressionSet.

Usage

rowQ(imat, which)
rowMax(imat)
rowMin(imat)

Arguments

imat	Either a matrix or an ExpressionSet.
which	An integer indicating which order statistic should be returned.

Details

rowMax and rowMin simply call rowQ with the appropriate argument set.

The argument which takes values between 1, for the minimum per row, and ncol(imat), for the maximum per row.

Value

A vector of length equal to the number of rows of the input matrix containing the requested quantiles.

Author(s)

R. Gentleman

See Also

rowMedians. rowMeans() in colSums().

Examples

 data(sample.ExpressionSet)
 rowMin(sample.ExpressionSet)
 rowQ(sample.ExpressionSet, 4)

Biobase documentation built on Nov. 8, 2020, 6:52 p.m.