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aroma.core (version 3.0.0)

estimateStandardDeviation.RawGenomicSignals: Estimates the standard deviation of the raw Ys

Description

Estimates the standard deviation of the raw Ys robustly or non-robustly using either a "direct" estimator or a first-order difference estimator.

Usage

"estimateStandardDeviation"(this, field=NULL, method=c("diff", "direct"), estimator=c("mad", "sd"), na.rm=TRUE, weights=getWeights(this), ...)

Arguments

field
A character specifying the field to estimate.
method
If "diff", the estimate is based on the first-order contigous differences of raw Ys. If "direct", it is based directly on the raw Ys.
estimator
If "mad", the robust mad estimator is used. If "sd", the sd estimator is used.
na.rm
If TRUE, missing values are excluded first.
weights
Locus specific weights.
...
Not used.

Value

Returns a non-negative numeric value.

See Also

diff(), sd, and mad. For more information see RawGenomicSignals.