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]