R version 2.13.0 (2011-04-13)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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> y <- c(5124,4742,5434,5684,6332,6334,5636,5940,6195,6022,4535,4320,4872,4662,4663,5491,6018,6393,5610,5777,6094,6478,5216,5201,4784,4205,4681,4896,5752,6452,5995,5601,6119,6569,5798,5492,5018,4773,5502,5908,5902,6125,5419,5559,5962,6023,5346,5379,4859,5156,5010,5508,6426,6043,5499,5191,5790,5949,5219,4729)
> x <- c(119.880,131.468,155.089,149.581,122.788,143.900,112.115,109.600,117.446,118.456,101.901,89.940,129.143,126.102,143.048,142.258,131.011,146.471,114.073,114.642,118.226,111.338,108.701,80.512,146.865,137.179,166.536,137.070,127.090,139.966,122.243,109.097,116.591,111.964,109.754,77.609,138.445,127.901,156.615,133.264,143.521,152.139,131.523,113.925,86.495,127.877,107.017,78.716,138.278,144.238,143.679,159.932,136.781,148.173,125.673,105.573,122.405,128.045,94.467,85.573)
> par8 = 'terrain.colors'
> par7 = 'Y'
> par6 = 'Y'
> par5 = '0'
> par4 = '0'
> par3 = '0'
> par2 = '50'
> par1 = '50'
> ylab = 'auto ongevallen'
> xlab = 'inschrijvingen'
> 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/1kp6b1324490379.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  
   5371.282        1.223  

> 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/259yy1324490379.tab") 
> 
> try(system("convert tmp/1kp6b1324490379.ps tmp/1kp6b1324490379.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  5.264   0.190   5.461