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

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> y <- c(641,550,542,629,687,612,588,567,564,570,635,591,634,576,352,508,586,666,694,651,655,734,648,678,816,591,564,743,694,729,749,539,569,693,581,507,613,443,523,597,534,523,559,431,538,612,428,522,531,426,410,551,556,460,289,392,401,399,355,338,379,334,322,450,486,422,406,420,432,418)
> x <- c(15107,15024,12083,15761,16943,15070,13660,14769,14725,15998,15371,14957,15470,15102,11704,16284,16727,14969,14861,14583,15306,17904,16379,15420,17871,15913,13867,17823,17872,17422,16705,15991,16584,19124,17839,17209,18587,16258,15142,19202,17747,19090,18040,17516,17752,21073,17170,19440,19795,17575,16165,19465,19932,19961,17343,18924,18574,21351,18595,19823,20844,19640,17735,19814,22239,20682,17819,21872,22117,21866)
> par5 = 'Brussels Gewest'
> par4 = 'Totaal'
> 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/13ysu1224461413.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/13ysu1224461413.ps tmp/13ysu1224461413.png")
> 
> 
> proc.time()
   user  system elapsed 
  0.955   0.156   1.018