R version 2.12.0 (2010-10-15)
Copyright (C) 2010 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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> y <- c(105.1,114.9,106.4,104.5,121.6,141.4,99,126.7,134.1,81.3,88.6,132.7,132.9,134.4,103.7,119.7,115,132.9,108.5,113.9,142,97.7,92.2,128.8,134.9,128.2,114.8,117.9,119.1,120.7,129.1,117.6,129.2,100,87,128,127.7,93.4,84.1,71.7,83.2,89.1,79.6,62.8,95.1,63.6,61.4,98.2,95.3,81.5,85.5,71.1,78.1,103,86,86.2,105.7,57.2,73.7,120.5)
> x <- c(88.7,94.6,98.7,84.2,87.7,103.3,88.2,93.4,106.3,73.1,78.6,101.6,101.4,98.5,99,89.5,83.5,97.4,87.8,90.4,101.6,80,81.7,96.4,110.2,101.1,89.3,90,95.4,100.3,99.5,93.9,100.6,84.7,81.6,109,99,81.1,81.8,66.5,66.4,86.3,73.6,71.5,87.2,65.3,69.7,95.5,86.3,81,88.7,71.9,78.6,96,81.1,77.5,97.3,78.6,79,93.4)
> par5 = 'Transp'
> par4 = 'ElElAp'
> 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/1b73m1292965586.ps",horizontal=F,onefile=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/1b73m1292965586.ps tmp/1b73m1292965586.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  0.680   0.200   0.848