R version 2.15.2 (2012-10-26) -- "Trick or Treat"
Copyright (C) 2012 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i686-pc-linux-gnu (32-bit)

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> y <- c(30,28,31,35,35,37,39,31,38,37,37,35,37,42,28,37,36,37,33,40,30,36,33,40,37,37,39,35,36,34,36,32,33,27,37,32,31,31,32,37,25,30,37,37,40,35,35,43,32,42,35,27,30,31,36,36,41,34,36,33,35,28,33,38,37,39,34,32,36,36,35,33,42,36,33,36,32,35,38,33,32,38,39,39,39,30,38,38,42,41,31,39,40,31,34,23,28,36,41,29,31,33,35,35,34,40,34,36,35,39,33,37,40,32,37,27,35,37,32,31,31,38,34,30,34,37,38,33,35,27,34,35,39,35,34,36,36,32,39,40,35,31,35,38,37,31,32,35,39,31,39,48,33,36,40,37,34,42,39,28,26,30,30,39,37,40,38,35,33,34,33,41,36,27,33,38,31,31,46,33,34,47,36,38,32,33,34,34,37,37,41,27,31,38,30,36,30,34,32,29,29,39,32,30,39,30,40,41,38,37,33,34,36,39,41,42,38,40,32,40,37,36,28,36,35,32,38,32,39,39,31,33,46,38,24,28,35,39,37,38,38,32,36,28,38,28,37,28,40,34,33,32,30,33,37,39,42,36,35,32,35,33,36,31,32,38,46,39,31,39,36,37,33,22,42,28,28,31,36,37,35,31,37,38,46,40,43,49,39,37,36,31,32,38,37,36,21,32,36,35,39,28,42,36,41,30,18,37,28,39,40,44,26,34,37,37,32,29,31,32,44,39,39,35,36,33,35,35,30,38)
> x <- c(34,33,29,34,32,35,41,27,40,40,36,40,43,40,33,37,32,26,36,39,38,34,35,41,42,36,39,33,33,36,37,36,34,32,35,39,30,25,29,39,31,26,28,40,32,35,32,41,34,36,38,34,32,34,32,40,43,35,45,36,39,31,36,36,37,40,35,36,32,36,37,42,37,36,36,33,37,35,37,28,33,45,38,43,37,36,40,39,43,32,37,34,44,35,34,37,40,36,44,35,34,40,34,39,36,40,37,35,45,39,39,37,38,46,37,27,33,42,33,33,33,38,37,35,33,39,38,39,38,30,43,34,39,36,32,37,42,40,35,39,34,28,30,36,31,34,33,37,40,39,42,47,38,38,40,37,29,37,37,33,31,36,37,39,35,33,37,42,31,32,36,32,40,32,30,37,42,37,47,37,31,41,44,40,37,33,35,40,38,36,36,35,30,37,43,33,39,38,40,29,35,37,26,28,38,29,35,38,39,44,33,35,42,30,36,40,39,36,37,37,37,36,30,32,35,42,41,35,33,39,34,39,41,34,30,29,33,40,32,37,37,36,41,34,38,40,42,32,40,38,35,34,38,24,39,42,44,35,37,34,41,33,42,30,30,40,49,39,29,39,35,35,34,24,47,24,30,34,41,32,32,35,37,40,45,35,39,46,33,40,35,38,36,34,30,44,37,36,37,34,43,31,34,38,38,34,26,36,35,37,40,43,29,30,36,38,43,41,31,36,44,35,42,31,38,34,40,41,30,43)
> par8 = 'terrain.colors'
> par7 = 'Y'
> par6 = 'Y'
> par5 = '0'
> par4 = '0'
> par3 = '0'
> par2 = '50'
> par1 = '50'
> ylab = 'y'
> xlab = 'x'
> main = 'Bivariate Kernel Density'
> par1 <- as(par1,'numeric')
> par2 <- as(par2,'numeric')
> par3 <- as(par3,'numeric')
> par4 <- as(par4,'numeric')
> par5 <- as(par5,'numeric')
> library('GenKern')
Loading required package: KernSmooth
KernSmooth 2.23 loaded
Copyright M. P. Wand 1997-2009
> if (par3==0) par3 <- dpik(x)
> if (par4==0) par4 <- dpik(y)
> if (par5==0) par5 <- cor(x,y)
> if (par1 > 500) par1 <- 500
> if (par2 > 500) par2 <- 500
> postscript(file="/var/wessaorg/rcomp/tmp/1dsg71355488736.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> op <- KernSur(x,y, xgridsize=par1, ygridsize=par2, correlation=par5, xbandwidth=par3, ybandwidth=par4)
> image(op$xords, op$yords, op$zden, col=terrain.colors(100), axes=TRUE,main=main,xlab=xlab,ylab=ylab)
> if (par6=='Y') contour(op$xords, op$yords, op$zden, add=TRUE)
> if (par7=='Y') points(x,y)
> (r<-lm(y ~ x))

Call:
lm(formula = y ~ x)

Coefficients:
(Intercept)            x  
    15.8182       0.5304  

> abline(r)
> box()
> dev.off()
null device 
          1 
> 
> #Note: the /var/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/wessaorg/rcomp/createtable")
> 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Bandwidth',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'x axis',header=TRUE)
> a<-table.element(a,par3)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'y axis',header=TRUE)
> a<-table.element(a,par4)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Correlation',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'correlation used in KDE',header=TRUE)
> a<-table.element(a,par5)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'correlation(x,y)',header=TRUE)
> a<-table.element(a,cor(x,y))
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/wessaorg/rcomp/tmp/2noon1355488736.tab") 
> 
> try(system("convert tmp/1dsg71355488736.ps tmp/1dsg71355488736.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  1.477   0.234   1.684