DispersionMeasureFactory: Configure dispersion measure.

In xegaSelectGene: Selection of Genes and Gene Representation Independent Functions

Configure dispersion measure.

Description

DispersionMeasureFactory() returns a function for the dispersion measure as specified by a label. If an invalid label is specified, the configuration fails.

Usage

DispersionMeasureFactory(method = "var")

Arguments

method

A dispersion measure. "var": Variance (Default). "std": Standard deviation. "mad": Median absolute deviation (mad(vec, constant=1)). "cv": Coefficient of variation". "range": Range. "iqr": Inter quartile range (approximated by the lower and upper hinge of fivenum). If an invalid label is specified, the configuration fails.

Value

A function which computes the dispersion measure from the vector of population statistics produced by xegaObservePopulation of package xegaPopulation.

See Also

Other Configuration: EvalGeneFactory(), ScalingFactory(), SelectGeneFactory()

Examples

require(stats)
fit<-sample(30, 20, replace=TRUE)
populationStats<-c(mean(fit), fivenum(fit), var(fit), mad(fit, constant=1))
dm<-DispersionMeasureFactory("var")
dm(populationStats)
dm<-DispersionMeasureFactory("range")
dm(populationStats)

xegaSelectGene documentation built on April 16, 2025, 5:12 p.m.