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WS4 Kendall density X²

*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 10:48:05 -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/t1256748595dis000xrrj4w0p7.htm/, Retrieved Wed, 28 Oct 2009 17:49:55 +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/t1256748595dis000xrrj4w0p7.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 «

98101950.13 187968318.5 188999043.8 210743289 230609073.9 130468610.9 190983186.8 162537001 262991089 175244644 153536881 218451087.3 116973495.2 218177896.1 139972561 142356218 112613295.5 253547719.2 123096251.3 262749137.1 102010000 147614906.3 135590955.4 85561526.32 80654369.49 104950319.4 155190863.4 177088669.1 117497470.1 139892713.1 119376190.6 113962030.1 86439787.29 108851881.9 150342218.5 119054770.4 87131416.39 135840396.2 122766400 96828411.45 55486359.51 69933078.76 71667060.61 67583576.24 108844643.7 72887198.76 72854150.57 63959435 39707815.79 57692632.99 51846967.98 37853044.1 36775240.36 52851578.19 43275872.83 59417285.63 40974770.56 49590376.35 68830403.8 92416177.78

Dataseries Y:

» Textbox « » Textfile « » CSV «

10284.5 12792 12823.61538 13845.66667 15335.63636 11188.5 13633.25 12298.46667 15353.63636 12696.15385 12213.93333 13683.72727 11214.14286 13950.23077 11179.13333 11801.875 11188.82353 16456.27273 11110.0625 16530.69231 10038.41176 11681.25 11148.88235 8631 9386.444444 9764.736842 12043.75 12948.06667 10987.125 11648.3125 10633.35294 10219.3 9037.6 10296.31579 11705.41176 10681.94444 9362.947368 11306.35294 10984.45 10062.61905 8118.583333 8867.48 8346.72 8529.307692 10697.18182 8591.84 8695.607143 8125.571429 7009.758621 7883.466667 7527.645161 6763.758621 6682.333333 7855.681818 6738.88 7895.434783 6361.884615 6935.956522 8344.454545 9107.944444

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	'RServer@AstonUniversity' @ vre.aston.ac.uk

Kendall tau Rank Correlation
Kendall tau	0.925423681735992
2-sided p-value	0
Score	1638
Var(Score)	24583.333984375
Denominator	1770

Charts produced by software:

http://www.freestatistics.org/blog/date/2009/Oct/28/t1256748595dis000xrrj4w0p7/1px3j1256748482.png (open in new window)

http://www.freestatistics.org/blog/date/2009/Oct/28/t1256748595dis000xrrj4w0p7/1px3j1256748482.ps (open in new window)

http://www.freestatistics.org/blog/date/2009/Oct/28/t1256748595dis000xrrj4w0p7/2cuip1256748482.png (open in new window)

http://www.freestatistics.org/blog/date/2009/Oct/28/t1256748595dis000xrrj4w0p7/2cuip1256748482.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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