R version 2.7.2 (2008-08-25)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> y <- c(3630.4,3519.9,3376.1,3057.9,3646.7,3585.5,3007.7,3545,3295.6,3390.3,3531.9,3738.7,3477,3338.3,3264.4,3452.4,4045.1,3660.5,3584.9,3819.9,3409.2,3643.5,3673.3,3645.2,3421.3,3531.4,3219.2,3552.3,3787.7,3392.7,3550,3681.9,3519.1,4283.2,4046.2,3824.9,4793.1,3977.7,3983.4,4152.9,4286.1,4348.1,3949.3,4166.7,4217.9,4528.2,4232.2,4470.9,5121.2,4170.8,4398.6,4491.4,4251.8,4901.9,4745.2,4666.9,4210.4,5273.6,4095.3,4610.1,4718.1,4185.5,4314.7,4422.6,5059.2,5043.6,4436.6,4922.6,4454.8,5058.7,4768.9,5171.8,4989.3,5202.1,4838.4,4876.5,5845.3,5686.3,4753.8,6620.4,5597.2,5643.5,6357.3,5909.1,6165.8)
> x <- c(12112,10875.2,9897.3,11672.1,12385.7,11405.6,9830.9,11025.1,10853.8,12252.6,11839.4,11669.1,11601.4,11178.4,9516.4,12102.8,12989,11610.2,10205.5,11356.2,11307.1,12648.6,11947.2,11714.1,12192.5,11268.8,9097.4,12639.8,13040.1,11687.3,11191.7,11391.9,11793.1,13933.2,12778.1,11810.3,13698.4,11956.6,10723.8,13938.9,13979.8,13807.4,12973.9,12509.8,12934.1,14908.3,13772.1,13012.6,14049.9,11816.5,11593.2,14466.2,13615.9,14733.9,13880.7,13527.5,13584,16170.2,13260.6,14741.9,15486.5,13154.5,12621.2,15031.6,15452.4,15428,13105.9,14716.8,14180,16202.2,14392.4,15140.6,15960.1,14351.3,13230.2,15202.1,17157.3,16159.1,13405.7,17224.7,17338.4,17370.6,18817.8,16593.2,17979.5)
> par5 = 'Invoer Extra-EU'
> par4 = 'Uitvoer Intra-EU'
> 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/1v5za1224323874.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/1v5za1224323874.ps tmp/1v5za1224323874.png")
> 
> 
> proc.time()
   user  system elapsed 
  0.924   0.172   1.003