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(6.0,6.2,6.4,6.4,6.3,6.5,6.6,6.8,6.9,7.0,6.5,6.6,6.7,6.5,6.6,6.6,7.3,7.3,7.3,7.4,7.4,7.4,7.0,6.9,7.0,7.1,7.1,7.1,6.8,7.0,6.8,7.3,7.3,7.3,6.9,6.9,6.9,7.4,7.4,7.2,6.3,6.3,6.3,7.5,7.5,7.4,6.9,6.8,6.9,6.5,6.5,6.5,6.5,6.5,6.5,6.8,6.9,6.8,6.9,6.9,6.9,6.2,6.3,6.3,6.0,6.0,6.0,6.3,6.3,6.3,6.1,6.1,6.3,5.1,5.0,4.9,5.2,5.2,5.2,5.2,5.3,5.4,5.7,5.7,5.9,5.4,5.6,5.5,5.5,5.5,5.7,6.2,6.4,6.5)
> x <- c(18.5,20.8,21.7,20.8,18.7,18.9,20.0,17.7,18.6,19.3,18.9,19.8,21.3,23.1,23.3,22.5,18.9,18.7,19.1,19.4,20.2,20.5,21.3,21.9,23.1,23.7,23.7,22.7,19.7,19.6,20.3,19.9,20.5,21.0,21.5,22.1,23.3,25.2,25.3,24.3,17.5,17.2,17.9,18.9,19.8,20.2,22.1,22.2,23.5,24.8,24.9,23.9,19.0,18.6,19.4,20.2,20.9,21.4,17.9,18.2,19.1,19.2,19.3,18.1,15.4,15.5,16.1,17.4,17.8,18.2,18.7,19.1,21.0,18.5,18.4,16.5,15.0,15.2,15.8,13.6,14.1,14.5,15.4,15.8,17.0,20.7,21.4,18.9,14.1,14.3,15.2,14.8,15.6,16.3)
> par5 = 'werklozen > 25'
> par4 = 'werklozen < 25'
> 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/1pvgp1197468810.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/1pvgp1197468810.ps tmp/1pvgp1197468810.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.736   0.240   1.808