R version 2.5.1 (2007-06-27)
Copyright (C) 2007 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> y <- c(5.8,7.3,7.0,7.0,7.8,7.8,7.8,7.0,7.0,7.0,8.0,7.9,7.9,7.3,7.3,7.4,7.7,7.7,7.7,7.0,7.0,7.1,7.3,7.3,7.4,7.9,7.7,7.8,8.6,8.6,8.6,7.0,7.0,7.1,8.7,8.9,8.9,7.9,7.8,7.9,8.2,8.2,8.2,7.9,7.9,7.9,8.5,8.5,8.5,8.0,7.8,7.9,8.3,8.2,8.1,7.9,8.0,8.0,7.7,7.7,7.6,7.8,7.6,7.6,8.1,8.0,7.8,7.4,7.3,7.2,7.4,7.5,7.2)
> x <- c(4.5,5.6,5.4,5.4,5.2,5.3,5.3,5.3,5.2,5.2,5.0,5.0,5.0,6.5,6.5,6.6,6.2,6.2,6.2,6.1,6.1,6.1,5.9,5.9,5.9,6.2,6.1,6.2,6.6,6.6,6.7,5.8,5.7,5.7,6.1,6.2,6.2,6.2,6.1,6.2,6.5,6.5,6.5,6.0,6.3,6.0,6.1,6.1,6.1,6.2,6.1,6.2,6.8,6.8,6.8,6.7,6.7,6.7,5.7,5.6,5.6,5.8,5.7,5.7,6.1,6.1,5.9,5.9,5.8,5.6,5.5,5.5,5.4)
> par5 = 'vrouwen > 25j'
> par4 = 'mannen > 25j'
> par3 = 'TRUE'
> par2 = 'blue'
> par1 = 'red'
> 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,
	 units<- 

> z <- data.frame(cbind(x,y))
> names(z) <- list(par4,par5)
> postscript(file="/var/www/html/rcomp/tmp/1h20r1193155259.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/1h20r1193155259.ps tmp/1h20r1193155259.png")
> 
> 
> proc.time()
   user  system elapsed 
  0.991   0.189   1.044