Re: [R] Algorithm for calculating McCall's T-scores

2008-12-18 Thread Stefan Björk
I seem to have solved this on my own: t.score.table <- data.frame(T=10:90,F=pnorm(10:90,mean=50.5,sd=10)) t.score <- function(x) { p <- ecdf(x) t <- cut(p(x),breaks=c(t.score.table$F,Inf),labels=t.score.table$T) t <- as.numeric(levels(t))[as.integer(t)] return(t) } /S 2008/12/18 Stefan B

[R] Algorithm for calculating McCall's T-scores

2008-12-18 Thread Stefan Björk
I'm looking for a function or algorithm for calculating McCall's area transformed T-scores, but have not find any. An algorithm is described on http://www.visualstatistics.net/Visual Statistics Multimedia/normalization.htm, but this seem to be an overly complicated procedure for implementing in R.