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*The author of this computation has been verified*

R Software Module: rwasp_kendall.wasp (opens new window with default values)

Title produced by software: Kendall tau Rank Correlation

Date of computation: Wed, 28 Oct 2009 10:43:06 -0600

Cite this page as follows:

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL http://www.freestatistics.org/blog/date/2009/Oct/28/t1256748260mugdzrf945hv9xl.htm/, Retrieved Wed, 28 Oct 2009 17:44:23 +0100

BibTeX entries for LaTeX users:

@Manual{KEY,
    author = {{YOUR NAME}},
    publisher = {Office for Research Development and Education},
    title = {Statistical Computations at FreeStatistics.org, URL http://www.freestatistics.org/blog/date/2009/Oct/28/t1256748260mugdzrf945hv9xl.htm/},
    year = {2009},
}
@Manual{R,
    title = {R: A Language and Environment for Statistical Computing},
    author = {{R Development Core Team}},
    organization = {R Foundation for Statistical Computing},
    address = {Vienna, Austria},
    year = {2009},
    note = {{ISBN} 3-900051-07-0},
    url = {http://www.R-project.org},
}

Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords:

Dataseries X:

» Textbox « » Textfile « » CSV «

11.02388 10.96971 10.90821 10.88734 10.85561 10.83008 10.8006 10.76026 10.72027 10.70003 10.91258 10.96597 10.98648 10.93797 10.87497 10.85325 10.80866 10.79886 10.75624 10.74195 10.71885 10.70259 10.88029 10.91538 10.94449 10.85605 10.77875 10.73082 10.74484 10.70237 10.63542 10.61676 10.54786 10.47619 10.70043 10.74192 10.72788 10.67764 10.6008 10.61221 10.61128 10.58337 10.51149 10.50873 10.39837 10.40144 10.62318 10.65145 10.67394 10.62415 10.60592 10.64604 10.68513 10.69435 10.70773 10.70338 10.63535 10.65655 10.83281 10.87535

Dataseries Y:

» Textbox « » Textfile « » CSV «

12.56585 12.55335 12.53064 12.53507 12.53223 12.53214 12.52466 12.50673 12.49553 12.48746 12.56814 12.58172 12.58554 12.57136 12.54781 12.55199 12.54322 12.544 12.53118 12.52531 12.52217 12.51102 12.57695 12.58014 12.58554 12.53719 12.50553 12.49073 12.50259 12.48437 12.44979 12.44254 12.41332 12.36892 12.46287 12.47225 12.4477 12.43178 12.40255 12.41757 12.42336 12.40917 12.37615 12.37617 12.32631 12.332 12.42092 12.42253 12.41702 12.40941 12.41416 12.45201 12.48491 12.50004 12.5174 12.52075 12.49661 12.51353 12.58694 12.59771

Output produced by software:

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 seconds
R Server	'Gwilym Jenkins' @ 72.249.127.135

Kendall tau Rank Correlation
Kendall tau	0.789488554000854
2-sided p-value	0
Score	1397
Var(Score)	24582.333984375
Denominator	1769.5

Charts produced by software:

http://www.freestatistics.org/blog/date/2009/Oct/28/t1256748260mugdzrf945hv9xl/1va151256748184.png (open in new window)

http://www.freestatistics.org/blog/date/2009/Oct/28/t1256748260mugdzrf945hv9xl/1va151256748184.ps (open in new window)

http://www.freestatistics.org/blog/date/2009/Oct/28/t1256748260mugdzrf945hv9xl/2a5lz1256748184.png (open in new window)

http://www.freestatistics.org/blog/date/2009/Oct/28/t1256748260mugdzrf945hv9xl/2a5lz1256748184.ps (open in new window)

Parameters (Session):

Parameters (R input):

R code (references can be found in the software module):

library('Kendall')

k <- Kendall(x,y)

bitmap(file='test1.png')

par(bg=rgb(0.2,0.4,0.6))

plot(x,y,main='Scatterplot',xlab=xlab,ylab=ylab)

grid()

dev.off()

bitmap(file='test2.png')

par(bg=rgb(0.2,0.4,0.6))

plot(rank(x),rank(y),main='Scatterplot of Ranks',xlab=xlab,ylab=ylab)

grid()

dev.off()

load(file='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='mytable.tab')

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.

Software written by Ed van Stee & Patrick Wessa

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