R version 2.6.1 (2007-11-26)
Copyright (C) 2007 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> x <- c(30,30,34,28,29,30,32,32,33,34,33,33,33,33,34,34,34,34,33,33,34,32,32,33,36,38,33,35,36,33,33,34,33,23,25,27,28,39,36,35,34,33,40,33,34,35,32,31,34,34,35,33,36,36,35,35,35,35,35,34,27,28,29,30,31,32,30,30,31,31,31,31,31,32,32,32,32,32,33,33,34,45,45,45,45,45,45,45,45,45,45,45,45,45,45,45,44,44,44,44,44,43,43,43,43,43,42,42,41,40,46,46,46,46,46,46,46,46,46,47,47,47,55,54,53,53,52,52,52,52,51,51,50,50,49,49,49,49,49,49,48,43,43,44,46,47,47,47,47,47,47,47,48,48,48,48,48,48,50,50,50,51)
> ylab = 'Density'
> xlab = 'Value (lengte van marsbewoners)'
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Prof. Dr. P. Wessa
> #To cite this work: Wessa, P. (2007), Kernel Density Estimation (v1.0.4) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_density.wasp/
> #Source of accompanying publication: http://www.xycoon.com/density_trace.htm
> #Technical description: --
> postscript(file="/var/www/html/rcomp/tmp/1q2311200758724.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> 
> mydensity1<-density(x,kernel='gaussian',na.rm=TRUE)
> plot(mydensity1,main='Gaussian Kernel',xlab=xlab,ylab=ylab)
> grid()
> dev.off()
null device 
          1 
> mydensity1

Call:
	density.default(x = x, kernel = "gaussian", na.rm = TRUE)

Data: x (162 obs.);	Bandwidth 'bw' = 2.506

       x               y            
 Min.   :15.48   Min.   :1.187e-05  
 1st Qu.:27.24   1st Qu.:2.002e-03  
 Median :39.00   Median :1.787e-02  
 Mean   :39.00   Mean   :2.124e-02  
 3rd Qu.:50.76   3rd Qu.:3.836e-02  
 Max.   :62.52   Max.   :5.741e-02  
> postscript(file="/var/www/html/rcomp/tmp/24xgv1200758724.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> 
> mydensity2<-density(x,kernel='epanechnikov',na.rm=TRUE)
> plot(mydensity2,main='Epanechnikov Kernel',xlab=xlab,ylab=ylab)
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/3l0ci1200758724.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> 
> mydensity3<-density(x,kernel='rectangular',na.rm=TRUE)
> plot(mydensity3,main='Rectangular Kernel',xlab=xlab,ylab=ylab)
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/4ihuh1200758724.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> 
> mydensity4<-density(x,kernel='triangular',na.rm=TRUE)
> plot(mydensity4,main='Triangular Kernel',xlab=xlab,ylab=ylab)
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/5nv981200758724.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> 
> mydensity5<-density(x,kernel='biweight',na.rm=TRUE)
> plot(mydensity5,main='Biweight Kernel',xlab=xlab,ylab=ylab)
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/661it1200758724.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> 
> mydensity6<-density(x,kernel='cosine',na.rm=TRUE)
> plot(mydensity6,main='Cosine Kernel',xlab=xlab,ylab=ylab)
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/7btvk1200758724.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> 
> mydensity7<-density(x,kernel='optcosine',na.rm=TRUE)
> plot(mydensity7,main='Optcosine Kernel',xlab=xlab,ylab=ylab)
> grid()
> dev.off()
null device 
          1 
> load(file='/var/www/html/rcomp/createtable')
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Properties of Density Trace',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Bandwidth',header=TRUE)
> a<-table.element(a,mydensity1$bw)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'#Observations',header=TRUE)
> a<-table.element(a,mydensity1$n)
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/www/html/rcomp/tmp/8c4xn1200758724.tab") 
> 
> system("convert tmp/1q2311200758724.ps tmp/1q2311200758724.png")
> system("convert tmp/24xgv1200758724.ps tmp/24xgv1200758724.png")
> system("convert tmp/3l0ci1200758724.ps tmp/3l0ci1200758724.png")
> system("convert tmp/4ihuh1200758724.ps tmp/4ihuh1200758724.png")
> system("convert tmp/5nv981200758724.ps tmp/5nv981200758724.png")
> system("convert tmp/661it1200758724.ps tmp/661it1200758724.png")
> system("convert tmp/7btvk1200758724.ps tmp/7btvk1200758724.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.593   1.163   1.954