ansc {binhf}

R Documentation

Anscombe transformation

Description

Does Anscombe's inverse sine transformation on a vector input.

Usage

ansc(x, binsize)

Arguments

x	input data vector
binsize	the binomial size corresponding to the observed binomial values.

Details

Performs the Anscombe calculation: A=sin^{-1}\sqrt{(x+3/8)/(binsize+3/4)}.

Value

y	vector of transformed data corresponding to x.

Author(s)

Matt Nunes (m.nunes@ucl.ac.uk)

References

Anscombe, F.J. (1948) The transformation of poisson, binomial and negative binomial data. Biometrika, 35, 246-254.

See Also

afgen, hfdenoise, hfdenoise.wav, link{invansc}

Examples

#generate binomial data:

x<-rbinom(100,10,.5)

y<-ansc(x,10)

#this is now the transformed data.

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