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(107.37,107.37,107.37,107.37,107.37,107.37,108.96,108.96,108.96,108.96,108.96,108.96,113.23,113.23,113.23,113.23,113.23,113.23,114.28,114.28,114.28,114.28,114.28,114.28,116.2,116.2,116.2,116.2,116.2,116.2,120.92,120.92,120.92,120.92,120.92,120.92,121.44,122.78,122.78,122.78,122.78,122.78,120.84,120.84,120.84,120.84)
> x <- c(105.86,105.86,105.86,105.86,105.86,105.86,108.42,108.42,108.42,108.42,108.42,108.42,108.42,108.42,108.42,108.42,108.84,108.84,108.84,108.84,108.84,108.84,110.51,110.51,110.51,110.51,110.51,110.51,110.51,110.51,110.51,110.51,110.51,110.51,110.51,110.51,112.43,112.43,112.43,112.43,112.43,113.68,113.68,113.68,113.68,113.68)
> par5 = 'brandv'
> par4 = 'famv'
> par3 = 'TRUE'
> par2 = 'blue'
> par1 = 'red'
> 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/16udp1257755082.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/16udp1257755082.ps tmp/16udp1257755082.png")
> 
> 
> proc.time()
   user  system elapsed 
  0.982   0.231   1.047