bctrans {wsyn}

The one-parameter family of Box-Cox transformations

Description

The one-parameter family of Box-Cox transformations

Usage

bctrans(y, lambda)

Arguments

y

A numeric, positive values assumed

lambda

The Box-Cox parameter

Details

Internal function. No error checking done. It is assumed the entries of y are positive.

Value

bctrans gives ((y^lambda)-1)/lambda for lambda not 0 or ln(y) for lambda equal to 0.

Author(s)

Daniel Reuman, [e-mail]

References

Box, GEP and Cox, DR (1964) An analysis of transformations (with discussion). Journal of the Royal Statistical Society B, 26, 211–252.

Venables, WN and Ripley, BD (2002) Modern Applied Statistics with S. Fourth edition. Springer.

See Also

cleandat, browseVignettes("wsyn")