Correlation uitvoer extra - invoer intra

*The author of this computation has been verified*

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

Title produced by software: Pearson Correlation

Date of computation: Sun, 26 Oct 2008 02:30:05 -0600

Cite this page as follows:

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL http://www.freestatistics.org/blog/date/2008/Oct/26/t1225009888rfg6y7satnkbyya.htm/, Retrieved Sun, 26 Oct 2008 08:31:28 +0000

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/2008/Oct/26/t1225009888rfg6y7satnkbyya.htm/}, year = {2008}, } @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 = {2008}, note = {{ISBN} 3-900051-07-0}, url = {http://www.R-project.org}, }

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords:

Dataseries X:

» Textbox « » Textfile « » CSV «

32.021 36.502 28.051 39.575 39.413 39.054 35.469 32.087 34.02 36.611 30.739 34.192 35.328 36.931 26.229 31.308 34.875 33.497 30.442 32.66 33.515 36.068 34.195 38.295 35.051 38.453 25.666 36.585 39.54 34.601 34.541 34.128 34.18 33.495 34.234 32.428 32.772 38.33 26.063 36.438 36.864 32.816 36.693 31.915 35.127 39.707 36.012 36.1 41.721 39.562 31.427 38.843 38.922 36.13 37.305 34.813 36.495 42.152 40.666 41.968 45.366 44.416 35.483 47.359 41.306 43.562 41.596 39.88 41.678 49.022 39.094 46.976 43.089 44.204 35.442 44.33 44.797 45.332 42.375 42.074 43.94 51.484 42.022 46.825 48.843 52.889 45.052 46.115 50.811 45.231 44.128 46.474 47.786 44.953 46.335 43.605 45.179

Dataseries Y:

» Textbox « » Textfile « » CSV «

102.304 92.21 94.286 109.345 109.86 117.246 111.809 111.632 112.409 121.071 107.623 113.404 112.668 95.427 92.277 105.719 107.744 103.928 99.202 98.849 101.745 113.954 107.602 105.701 105.36 99.026 88.89 108.373 116.241 105.09 109.849 106.491 108.557 116.774 107.602 100.462 107.728 99.877 86.387 110.637 118.557 106.845 113.374 104.78 111.239 129.093 113.399 104.622 127.335 105.192 104.149 124.768 123.846 122.667 129.199 114.973 121.42 139.194 126.568 120.341 131.997 108.813 113.012 136.439 125.17 139.811 142.757 134.35 135.657 162.163 129.7 140.799 142.35 122.134 125.81 141.304 142.108 143.785 131.428 137.147 136.219 153.798 133.063 143.912 149.099 140.254 129.512 143.443 162.133 155.445 147.506 172.927 175.685 179.308 186.447 166.948 172.428

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 3 seconds R Server 'Herman Ole Andreas Wold' @ 193.190.124.10:1001 Pearson Product Moment Correlation - Ungrouped Data Statistic Variable X Variable Y Mean 38.7821958762887 122.904958762887 Biased Variance 34.1683227142098 466.75133484366 Biased Standard Deviation 5.84536762866202 21.6044285933153 Covariance 105.847286028995 Correlation 0.829515702112771 Determination 0.688096300051644 T-Test 14.4769192058691 p-value (2 sided) 0 p-value (1 sided) 0 Degrees of Freedom 95 Number of Observations 97

Charts produced by software:

http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Oct/26/t1225009888rfg6y7satnkbyya/1zzo81225009800.png (open in new window) http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Oct/26/t1225009888rfg6y7satnkbyya/1zzo81225009800.ps (open in new window)

Parameters (Session):

Parameters (R input):

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

bitmap(file='test1.png') histx <- hist(x, plot=FALSE) histy <- hist(y, plot=FALSE) maxcounts <- max(c(histx$counts, histx$counts)) xrange <- c(min(x),max(x)) yrange <- c(min(y),max(y)) nf <- layout(matrix(c(2,0,1,3),2,2,byrow=TRUE), c(3,1), c(1,3), TRUE) par(mar=c(4,4,1,1)) plot(x, y, xlim=xrange, ylim=yrange, xlab=xlab, ylab=ylab) par(mar=c(0,4,1,1)) barplot(histx$counts, axes=FALSE, ylim=c(0, maxcounts), space=0) par(mar=c(4,0,1,1)) barplot(histy$counts, axes=FALSE, xlim=c(0, maxcounts), space=0, horiz=TRUE) dev.off() lx = length(x) makebiased = (lx-1)/lx varx = var(x)*makebiased vary = var(y)*makebiased corxy <- cor.test(x,y,method='pearson') cxy <- as.matrix(corxy$estimate)[1,1] load(file='createtable') a<-table.start() a<-table.row.start(a) a<-table.element(a,'Pearson Product Moment Correlation - Ungrouped Data',3,TRUE) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'Statistic',1,TRUE) a<-table.element(a,'Variable X',1,TRUE) a<-table.element(a,'Variable Y',1,TRUE) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,hyperlink('http://www.xycoon.com/arithmetic_mean.htm','Mean',''),header=TRUE) a<-table.element(a,mean(x)) a<-table.element(a,mean(y)) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,hyperlink('http://www.xycoon.com/biased.htm','Biased Variance',''),header=TRUE) a<-table.element(a,varx) a<-table.element(a,vary) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,hyperlink('http://www.xycoon.com/biased1.htm','Biased Standard Deviation',''),header=TRUE) a<-table.element(a,sqrt(varx)) a<-table.element(a,sqrt(vary)) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,hyperlink('http://www.xycoon.com/covariance.htm','Covariance',''),header=TRUE) a<-table.element(a,cov(x,y),2) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,hyperlink('http://www.xycoon.com/pearson_correlation.htm','Correlation',''),header=TRUE) a<-table.element(a,cxy,2) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,hyperlink('http://www.xycoon.com/coeff_of_determination.htm','Determination',''),header=TRUE) a<-table.element(a,cxy*cxy,2) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,hyperlink('http://www.xycoon.com/ttest_statistic.htm','T-Test',''),header=TRUE) a<-table.element(a,as.matrix(corxy$statistic)[1,1],2) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'p-value (2 sided)',header=TRUE) a<-table.element(a,(p2 <- as.matrix(corxy$p.value)[1,1]),2) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'p-value (1 sided)',header=TRUE) a<-table.element(a,p2/2,2) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'Degrees of Freedom',header=TRUE) a<-table.element(a,lx-2,2) a<-table.row.end(a) a<-table.row.start(a) a<-table.element(a,'Number of Observations',header=TRUE) a<-table.element(a,lx,2) a<-table.row.end(a) a<-table.end(a) table.save(a,file='mytable.tab')

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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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