Lack of correlation (Portal 2) | |||||||||||||||||||||||||||||||||||||||||||||||||
| *Unverified author* | |||||||||||||||||||||||||||||||||||||||||||||||||
| R Software Module: /rwasp_correlation.wasp (opens new window with default values) | |||||||||||||||||||||||||||||||||||||||||||||||||
| Title produced by software: Pearson Correlation | |||||||||||||||||||||||||||||||||||||||||||||||||
| Date of computation: Sun, 17 Apr 2011 16:03:41 +0000 | |||||||||||||||||||||||||||||||||||||||||||||||||
| Cite this page as follows: | |||||||||||||||||||||||||||||||||||||||||||||||||
| Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL http://www.freestatistics.org/blog/date/2011/Apr/17/t1303056013t8ef581udl75wn7.htm/, Retrieved Sun, 17 Apr 2011 18:00:15 +0200 | |||||||||||||||||||||||||||||||||||||||||||||||||
| Original text written by user: | |||||||||||||||||||||||||||||||||||||||||||||||||
| IsPrivate? | |||||||||||||||||||||||||||||||||||||||||||||||||
| No (this computation is public) | |||||||||||||||||||||||||||||||||||||||||||||||||
| User-defined keywords: | |||||||||||||||||||||||||||||||||||||||||||||||||
| Dataseries X: | |||||||||||||||||||||||||||||||||||||||||||||||||
| » Textbox « » Textfile « » CSV « | |||||||||||||||||||||||||||||||||||||||||||||||||
| 22854 23026 22927 22838 22686 22799 22820 22835 22854 22650 22657 22744 22664 22688 22447 22044 21796 21400 21470 21569 21711 21850 21943 21959 22008 22044 22024 22047 22067 22106 22005 21909 21793 21775 21830 21814 21802 21851 21812 21780 21771 21757 21759 21638 21510 21411 21385 21490 19065 19919 20919 20912 20913 20810 20808 20746 20601 20383 20091 20099 19896 19793 19421 19187 18969 18708 18566 18200 18200 17013 16998 16894 16937 16952 16882 16864 16944 16987 17060 17143 17218 17280 17278 17310 17389 17502 17609 17816 17982 17996 18247 18489 18510 18670 18823 18967 18946 19275 19546 19514 19836 19731 20165 20448 20624 20969 21135 21316 21642 21743 22021 22144 22416 22454 22584 22676 22878 22905 23049 23288 23442 23570 23791 23769 23921 23353 24162 24407 24552 24782 24783 25071 24496 25156 25228 25384 25740 25860 23791 24306 25278 24727 25568 25672 25405 25404 25 etc... | |||||||||||||||||||||||||||||||||||||||||||||||||
| Dataseries Y: | |||||||||||||||||||||||||||||||||||||||||||||||||
| » Textbox « » Textfile « » CSV « | |||||||||||||||||||||||||||||||||||||||||||||||||
| 0.0004619415 0.0004675645 0.0004537342 0.0004593573 0.0004406834 0.0004500941 0.0004685962 0.0004496081 0.0004688521 0.0004590911 0.0004587804 0.0004592529 0.0005336746 0.0005338313 0.0005517349 0.0005520146 0.0005523253 0.0006278578 0.000599586 0.0006089967 0.0006643019 0.000718216 0.0006441434 0.0006253128 0.0006257724 0.0006254927 0.0006258068 0.0005502048 0.00057832 0.0005782507 0.0005234128 0.0005252564 0.000515605 0.0005342788 0.0005158461 0.0005344337 0.0005154457 0.0005341892 0.0005904195 0.0005811171 0.0006371907 0.0005808047 0.0005902459 0.0006458549 0.0006303712 0.0006025294 0.0005839626 0.0005558475 0.0004809432 0.0004753202 0.0004003465 0.0003723871 0.0003905962 0.0002975526 0.0003130363 0.0003128797 0.0003314465 0.0003258235 0.0003257539 0.0003313769 0.0003163822 0.0003257539 0.0002924804 0.0002793078 0.0004292553 0.0004292553 0.0004292553 0.0004292553 0.0004292553 0.0004292553 0.0004292553 0.0004292553 0.0004442501 0.00046 etc... | |||||||||||||||||||||||||||||||||||||||||||||||||
| Output produced by software: | |||||||||||||||||||||||||||||||||||||||||||||||||
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| Charts produced by software: | |||||||||||||||||||||||||||||||||||||||||||||||||
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| 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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