R version 2.15.2 (2012-10-26) -- "Trick or Treat"
Copyright (C) 2012 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i686-pc-linux-gnu (32-bit)

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> x <- c(59,34,49,50,34,15,107,9,28,41,46,66,48,37,72,50,90,64,66,38,56,60,96,43,37,49,48,63,62,35,62,59,47,72,24,82,28,60,90,2,47,30,27,74,75,41,49,42,31,32,101,22,51,77,42,47,7,91,18,28,61,68,95,29,65,71,57,87,66,49,58,55,48,40,52,52,33,51,20,54,47,40,77,68,51,38,42,33,96,40,54,22,34,36,31,80,67,41,57,51,39,61,68,45,51,64,74,24,86,63,65,40,12,43,46,56,65,61,28,26,37,17,35,28,62,23,28,28,68,6,12,42,17,28,37,88,6,58,6,9,13,37,25,68,51,22,36,27,11,42,76,48,30,91,70,98,44,27,24,64,98,23,33,90,36,57,46,39,32,69,83,54,48,71,29,38,55,26,62,38,21,23,4,50,76,2,13,5,37,26,42,27,22,16,39,33,20,18,28,20,21,14,38,30,25,12,22,50,37,34,26,34,15,23,16,15,17,16,18,22,21,29,27,19,9,38,20,18,17,21,9,23,24,14,18,16,44,13,20,11,26,39,14,14,20,24,28,24,24,10,42,28,5,28,24,9,9,25,17,11,8,21,10,15,14,23,18,16,33,21,29,20,12,29,17,19,15,5,24,23,22,25,25,11,18,14,16,17,20)
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Prof. Dr. P. Wessa
> #To cite this work: AUTHOR(S), (YEAR), YOUR SOFTWARE TITLE (vNUMBER) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #Technical description: Write here your technical program description (don't use hard returns!)
> gp <- function(lambda, p)
+ {
+ (p^lambda-(1-p)^lambda)/lambda
+ }
> sortx <- sort(x)
> c <- array(NA,dim=c(201))
> for (i in 1:201)
+ {
+ if (i != 101) c[i] <- cor(gp(ppoints(x), lambda=(i-101)/100),sortx)
+ }
> postscript(file="/var/wessaorg/rcomp/tmp/18uab1353335245.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot((-100:100)/100,c[1:201],xlab='lambda',ylab='correlation',main='PPCC Plot - Tukey lambda')
> grid()
> dev.off()
null device 
          1 
> 
> #Note: the /var/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/wessaorg/rcomp/createtable")
> 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Tukey Lambda - Key Values',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Distribution (lambda)',1,TRUE)
> a<-table.element(a,'Correlation',1,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Approx. Cauchy (lambda=-1)',header=TRUE)
> a<-table.element(a,c[1])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Exact Logistic (lambda=0)',header=TRUE)
> a<-table.element(a,(c[100]+c[102])/2)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Approx. Normal (lambda=0.14)',header=TRUE)
> a<-table.element(a,c[115])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'U-shaped (lambda=0.5)',header=TRUE)
> a<-table.element(a,c[151])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Exactly Uniform (lambda=1)',header=TRUE)
> a<-table.element(a,c[201])
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/wessaorg/rcomp/tmp/2nic71353335245.tab") 
> 
> try(system("convert tmp/18uab1353335245.ps tmp/18uab1353335245.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  0.992   0.139   1.125