R version 2.8.1 (2008-12-22)
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(2.93,2.83,2.72,2.73,2.72,2.77,2.61,2.47,2.3,2.38,2.43,2.39,2.6,2.84,2.87,2.92,3.08,3.33,3.48,3.57,3.66,3.77,3.75,3.75,3.81,3.82,3.89,4.05,4.1,4.07,4.26,4.4,4.61,4.63,4.48,4.46,4.45,4.32,4.52,4.21,3.97,4.12,4.5,4.73,5.26,5.2,4.94,4.95,4.52,3.85,3.41,2.95,2.68,2.53,2.44,2.16,2.2,2.1,2.29,2.2)
> x <- c(2.21,2.24,2.21,2.2,2.19,2.24,2.2,2.09,2,2.07,2.13,2.13,2.32,2.59,2.68,2.7,2.76,2.95,3.14,3.2,3.25,3.35,3.42,3.53,3.67,3.71,3.75,3.89,3.93,3.94,4.11,4.23,4.36,4.4,4.22,4.11,4.1,4.02,4.09,3.89,3.63,3.77,4,4.18,4.57,4.51,4.42,4.28,3.1,2.62,2.41,1.71,1.28,1.18,1.33,1.07,1.03,0.78,0.77,0.66)
> par5 = 'reurobl'
> par4 = 'rovl'
> par3 = 'TRUE'
> par2 = 'yellow'
> 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/1shpi1257606500.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/1shpi1257606500.ps tmp/1shpi1257606500.png")
> 
> 
> proc.time()
   user  system elapsed 
  0.530   0.340   0.797