R version 2.7.0 (2008-04-22)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> y <- c(635.4,590.8,634.3,576.1,351.6,507.5,586.2,666.4,693.6,650.6,654.8,733.5,648.1,678.1,816.2,591,563.5,742.5,694.4,728.6,749,538.9,568.5,692.8,580.5,506.9,612.8,442.9,523.3,596.7,533.7,523.1,559.2,430.7,538.2,612.4,428,522.4,531.1,425.9,410.3,551,555.6,460.2,288.9,392.3,400.5,399,354.9,337.6,379.2,334.1,321.6,449.8,486.3,421.9,405.6,420,432.4,418.1)
> x <- c(15370.6,14956.9,15469.7,15101.8,11703.7,16283.6,16726.5,14968.9,14861,14583.3,15305.8,17903.9,16379.4,15420.3,17870.5,15912.8,13866.5,17823.2,17872,17422,16704.5,15991.2,16583.6,19123.5,17838.7,17209.4,18586.5,16258.1,15141.6,19202.1,17746.5,19090.1,18040.3,17515.5,17751.8,21072.4,17170,19439.5,19795.4,17574.9,16165.4,19464.6,19932.1,19961.2,17343.4,18924.2,18574.1,21350.6,18594.6,19823.1,20844.4,19640.2,17735.4,19813.6,22238.5,20682.2,17818.6,21872.1,22117,21865.9)
> par5 = 'Brussels gewest'
> par4 = 'Totaal'
> 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 

> z <- data.frame(cbind(x,y))
> names(z) <- list(par4,par5)
> postscript(file="/var/www/html/rcomp/tmp/16yrt1224538120.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/16yrt1224538120.ps tmp/16yrt1224538120.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.781   0.299   1.838