R version 2.8.0 (2008-10-20)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> y <- c(89.3,87.5,106.7,102.5,109.2,123.7,83.1,97,119.1,125.1,113.6,122.4,92.8,97.2,115.6,111.3,114.6,137.5,83.7,106,123.4,126.5,120,141.6,90.5,96.5,113.5,120.1,123.9,144.4,90.8,114.2,138.1,135,131.3,144.6,101.7,108.7,135.3,124.3,138.3,158.2,93.5,124.8,154.4,152.8,148.9,170.3,124.8,134.4,154,147.9,168.1,175.7,116.7,140.8,164.2,173.8,167.8,166.6,135.1,158.1,151.8,168.7,166.9)
> x <- c(74.8,93.1,103.9,83.9,77.7,141.5,58.9,75.3,108.4,91,84.6,179.8,85.6,76.4,109.7,99.1,86.7,111.4,78.4,76.7,114.2,99.7,94.2,173.5,83.1,88.9,132,122.1,105.1,133.7,63.6,112.7,120.5,112,126.2,209.2,91,116.7,137.6,108.1,136.6,152.3,114.3,120.7,131.8,129.4,187.5,189.5,109.2,158.1,176.2,125.5,155,170.3,99.4,139.2,169.6,136.1,168.2,318.6,154.1,161.4,183.4,167.2,205.3)
> par5 = 'Omzet'
> par4 = 'Investeringen'
> 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: 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!)
> 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/1js8w1228494397.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/1js8w1228494397.ps tmp/1js8w1228494397.png")
> 
> 
> proc.time()
   user  system elapsed 
  0.745   0.174   0.811