R version 2.6.1 (2007-11-26)
Copyright (C) 2007 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> y <- c(8.4,8.9,9.3,9.1,8.6,8.7,8.9,8.8,9.1,9.3,8.9,9.0,9.4,9.8,10.0,9.8,9.0,8.9,9.0,9.1,9.3,9.4,9.3,9.3,9.5,10.2,10.2,10.1,9.0,8.9,9.0,9.5,9.5,9.6,9.3,9.3,9.6,10.9,10.9,10.6,8.4,8.2,8.3,9.6,9.7,9.7,9.1,9.0,9.3,9.4,9.4,9.3,8.1,7.9,8.0,8.8,9.0,9.0,8.5,8.5,8.6,9.2,9.3,9.2,7.8,7.8,7.8,8.8,8.9,9.0,8.3,8.3,8.9,7.4,7.5,7.1,6.9,6.9,7.0,7.0,7.2,7.3,8.4,8.4,8.8,8.9,9.3,8.7,8.1,8.0,8.3,8.2,8.5,8.7)
> x <- c(6.3,6.5,6.6,6.6,6.5,6.7,6.9,6.9,7.1,7.2,6.8,6.9,7.2,6.7,6.7,6.7,7.7,7.8,7.8,8.1,8.2,8.2,7.7,7.7,7.8,7.6,7.6,7.5,7.2,7.5,7.4,7.7,7.8,7.8,7.6,7.5,7.7,8.0,7.9,7.7,6.6,6.6,6.7,7.8,7.9,7.9,8.0,7.8,8.1,7.6,7.6,7.5,7.4,7.4,7.5,7.6,7.7,7.7,7.7,7.7,7.8,6.4,6.4,6.3,6.2,6.2,6.3,6.3,6.3,6.3,6.6,6.6,7.0,6.0,5.9,5.6,5.5,5.6,5.7,5.3,5.5,5.5,5.4,5.4,5.6,5.6,5.8,5.4,5.1,5.2,5.3,6.0,6.3,6.4)
> par5 = 'Vrouwen'
> par4 = 'Mannen'
> par3 = 'TRUE'
> par2 = 'grey'
> par1 = 'grey'
> ylab = ''
> main = 'Back to Back Histogram'
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Prof. Dr. P. Wessa
> #To cite this work: Wessa P., (2007), Back to Back Histogram (v1.0.2) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_backtobackhist.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #Technical description: Write here your technical program description
> if (par3 == 'TRUE') par3 <- TRUE
> if (par3 == 'FALSE') par3 <- FALSE
> library(Hmisc)

Attaching package: 'Hmisc'


	The following object(s) are masked from package:base :

	 format.pval,
	 round.POSIXt,
	 trunc.POSIXt,
	 units 

> z <- data.frame(cbind(x,y))
> names(z) <- list(par4,par5)
> postscript(file="/var/www/html/rcomp/tmp/1yycw1197467709.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> out <- histbackback(z, probability=par3, main = main, ylab = ylab)
> barplot(-out$left, col=par1, horiz=TRUE, space=0, add=TRUE, axes=FALSE)
> barplot(out$right, col=par2, horiz=TRUE, space=0, add=TRUE, axes=FALSE)
> dev.off()
null device 
          1 
> 
> system("convert tmp/1yycw1197467709.ps tmp/1yycw1197467709.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.763   0.257   1.839