R version 3.2.4 Revised (2016-03-16 r70336) -- "Very Secure Dishes"
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Platform: x86_64-pc-linux-gnu (64-bit)

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> y <- c(10.8,10.0,9.6,8.8,8.0,7.4,7.0,8.1,9.6,10.1,9.6,8.9,8.2,8.3,10.6,16.3,16.7,15.9,14.7,13.8,12.0,10.5,9.8)
> x <- c(1461.75,1515.74,1560.48,1601.12,1652.46,1701.84,1788.95,1862.85,2010.89,2159.9,2292.84,2471.96,2655.05,2728.69,2982.54,3517.68,3457.08,3603.06,3536.95,3454.65,3506.11,3688.29,3951.31)
> ylab = 'U-6'
> xlab = 'Spending'
> #'GNU S' R Code compiled by R2WASP v. 1.2.291 ()
> #Author: root
> #To cite this work: Wessa, (2012), Kendall tau Rank Correlation (v1.0.11) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_kendall.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #
> library('Kendall')
> k <- Kendall(x,y)
> postscript(file="/var/wessaorg/rcomp/tmp/1g5jm1460160895.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> 
> plot(x,y,main='Scatterplot',xlab=xlab,ylab=ylab)
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/24dk61460160895.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> 
> plot(rank(x),rank(y),main='Scatterplot of Ranks',xlab=xlab,ylab=ylab)
> grid()
> dev.off()
null device 
          1 
> 
> #Note: the /var/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/wessaorg/rcomp/createtable")
> 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Kendall tau Rank Correlation',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Kendall tau',header=TRUE)
> a<-table.element(a,k$tau)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'2-sided p-value',header=TRUE)
> a<-table.element(a,k$sl)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Score',header=TRUE)
> a<-table.element(a,k$S)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Var(Score)',header=TRUE)
> a<-table.element(a,k$varS)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Denominator',header=TRUE)
> a<-table.element(a,k$D)
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/wessaorg/rcomp/tmp/3dn6m1460160895.tab") 
> 
> try(system("convert tmp/1g5jm1460160895.ps tmp/1g5jm1460160895.png",intern=TRUE))
character(0)
> try(system("convert tmp/24dk61460160895.ps tmp/24dk61460160895.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  0.875   0.142   1.020