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(99.2,93.6,104.2,95.3,102.7,103.1,100,107.2,107,119,110.4,101.7,102.4,98.8,105.6,104.4,106.3,107.2,108.5,106.9,114.2,125.9,110.6,110.5,106.7,104.7,107.4,109.8,103.4,114.8,114.3,109.6,118.3,127.3,112.3,114.9,108.2,105.4,122.1,113.5,110,125.3,114.3,115.6,127.1,123,122.2,126.4,112.7,105.8,120.9,116.3,115.7,127.9,108.3,121.1,128.6,123.1,127.7,126.6)
> x <- c(98.8,100.5,110.4,96.4,101.9,106.2,81,94.7,101,109.4,102.3,90.7,96.2,96.1,106,103.1,102,104.7,86,92.1,106.9,112.6,101.7,92,97.4,97,105.4,102.7,98.1,104.5,87.4,89.9,109.8,111.7,98.6,96.9,95.1,97,112.7,102.9,97.4,111.4,87.4,96.8,114.1,110.3,103.9,101.6,94.6,95.9,104.7,102.8,98.1,113.9,80.9,95.7,113.2,105.9,108.8,102.3)
> par5 = 'ipvg'
> par4 = 'iptot'
> 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/freestat/rcomp/tmp/151681258026623.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/151681258026623.ps tmp/151681258026623.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.029   0.217   1.093