File: bct.R

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r-cran-teachingdemos 2.13-1
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"bct" <-
function(y,lambda){

  gm <- exp( mean( log(y) ) )

  if(lambda==0) return( log(y)*gm )
  
  yt <- (y^lambda - 1)/( lambda * gm^(lambda-1) )
  return(yt)
}