rowQ {Biobase} | R Documentation

## A function to compute empirical row quantiles.

### 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`, `rowMin` and `rowMedians` 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)

[Package Biobase version 2.4.1 Index]