R version 2.9.0 (2009-04-17)
Copyright (C) 2009 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> y <- c(95.1,97,112.7,102.9,97.4,111.4,87.4,96.8,114.1,110.3,103.9,101.6,94.6,95.9,104.7,102.8,98.1,113.9,80.9,95.7,113.2,105.9,108.8,102.3,99,100.7,115.5,100.7,109.9,114.6,85.4,100.5,114.8,116.5,112.9,102,106,105.3,118.8,106.1,109.3,117.2,92.5,104.2,112.5,122.4,113.3,100,110.7,112.8,109.8,117.3,109.1,115.9,96,99.8,116.8,115.7,99.4,94.3)
> x <- c(93.8,93.8,107.6,101,95.4,96.5,89.2,87.1,110.5,110.8,104.2,88.9,89.8,90,93.9,91.3,87.8,99.7,73.5,79.2,96.9,95.2,95.6,89.7,92.8,88,101.1,92.7,95.8,103.8,81.8,87.1,105.9,108.1,102.6,93.7,103.5,100.6,113.3,102.4,102.1,106.9,87.3,93.1,109.1,120.3,104.9,92.6,109.8,111.4,117.9,121.6,117.8,124.2,106.8,102.7,116.8,113.6,96.1,85)
> par5 = 'Totale Industriele Activiteit'
> par4 = 'Industriele Activiteit in de Metallurgie'
> par3 = 'TRUE'
> par2 = 'blue'
> par1 = 'red'
> ylab = 'Indexen'
> 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/html/rcomp/tmp/12xa71261602003.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 
> 
> try(system("convert tmp/12xa71261602003.ps tmp/12xa71261602003.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  0.621   0.185   1.251