variance,RepeatRanking {GeneSelector} | R Documentation

## Compute genewise variances for ranks

### Description

One application of resampling methods is estimation of variance. Here, variance refers to ranks, computed genewise. Three different measures are implemented: ordinary variance, (squared)`mad` and the interquartile range (`IQR`)

### Usage

    variance(RR, estimator = c("var", "mad", "iqr"), center = c("perturbed", "original"))

### Arguments

`RR` | An object of class `RepeatRanking`
`estimator` | Specifies the variance estimator, one of `var` (usual variance estimator), `mad` (squared median absolute deviation), `iqr` (interquartile range)
`center` | Estimator for the location (mean) parameter to be used. Can be either the rank from the original dataset or the average rank among all perturbed datasets.

### Value

A numeric vector containing the estimated variances corresponding to each gene, ordered according to the gene ranking performed on the original dataset.

### Author(s)

Martin Slawski martin.slawski@campus.lmu.de
Anne-Laure Boulesteix http://www.slcmsr.net/boulesteix

### See Also

GeneRanking

[Package GeneSelector version 1.4.0 Index]