R version 2.8.1 (2008-12-22)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> y <- c(122.5,122.4,121.9,122.2,123.7,122.6,115.7,116.1,120.5,122.6,119.9,120.7,120.2,122.1,119.3,121.7,113.5,123.7,123.4,126.4,124.1,125.6,124.8,123,126.9,127.3,129,126.2,125.4,126.3,126.3,128.4,127.2,128.5,129,128.9,128.3,124.6,126.2,129.1,127.3,129.2,130.4,125.9,135.8,126.4,129.5,128.4,125.6,127.7,126.4,124.2,126.4,123.7,121.8,124,122.7,122.9,121,122.8,122.9)
> x <- c(80.2,74.8,77.8,73,72,75.8,72.6,71.9,74.8,72.9,72.9,79.9,74,76,69.6,77.3,75.2,75.8,77.6,76.7,77,77.9,76.7,71.9,73.4,72.5,73.7,69.5,74.7,72.5,72.1,70.7,71.4,69.5,73.5,72.4,74.5,72.2,73,73.3,71.3,73.6,71.3,71.2,81.4,76.1,71.1,75.7,70,68.5,56.7,57.9,58.8,59.3,61.3,62.9,61.4,64.5,63.8,61.6,64.7)
> par5 = 'niet-duurzame consumptiegoederen'
> par4 = 'duurzame consumptiegoed'
> 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)
Loading required package: survival
Loading required package: splines

Attaching package: 'Hmisc'


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

	 untangle.specials 


	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/rcomp/tmp/17bmo1257931236.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/17bmo1257931236.ps tmp/17bmo1257931236.png")
> 
> 
> proc.time()
   user  system elapsed 
  0.610   0.370   0.893