variance,RepeatRanking {GeneSelector} | R Documentation |
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
)
variance(RR, estimator = c("var", "mad", "iqr"), center = c("perturbed", "original"))
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. |
A numeric vector containing the estimated variances corresponding to each gene, ordered according to the gene ranking performed on the original dataset.
Martin Slawski martin.slawski@campus.lmu.de
Anne-Laure Boulesteix http://www.slcmsr.net/boulesteix