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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_correlation.wasp
Title produced by softwarePearson Correlation
Date of computationWed, 22 Dec 2010 15:02:46 +0000
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2010/Dec/22/t1293030070g764iud6ojtn7w4.htm/, Retrieved Mon, 06 May 2024 01:23:04 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=114296, Retrieved Mon, 06 May 2024 01:23:04 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact118

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Pearson Correlation] [] [2010-12-22 15:02:46] [b91d9cfbf8712a09013bf3c2e3081c55] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
1143,94
1227,85
1261,26
1408,95
1162,58
1259,39
1253,85
1475,32
1211,75
1303,83
1299,37
1430,73
1244,95
1318,58
1318,74
1525,05
1275,88
1360,09
1349,81
1574,04
1294,58
1380,60
1369,22
1565,98
1338,96
1457,57
1456,21
1654,44
1428,47
1530,39
1514,13
1698,25
1454,22
1578,06
1526,53
1714,21
1492,86
1593,42
1555,50
1820,55
1534,57
1636,03
1594,58
1805,13
1565,37
1679,57
1638,26
1854,64
1628,72
1744,97
1694,35
1920,88
1680,26
1778,62
1740,89
2010,56
Dataseries Y:
Download CSV
Histogram 
9,70
9,20
9,90
10,00
9,90
9,20
9,60
9,40
9,10
8,70
9,50
9,50
9,40
9,00
9,60
9,30
9,00
8,50
8,50
7,90
7,20
6,50
7,10
6,80
6,20
6,20
6,50
7,50
7,40
6,90
7,60
8,10
8,20
7,70
8,30
8,50
8,70
7,40
9,10
8,40
8,60
8,10
8,70
8,50
8,70
8,30
8,10
7,90
8,00
7,60
7,30
7,10
7,10
6,30
7,70
6,80

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R Server'RServer@AstonUniversity' @ vre.aston.ac.uk

\begin{tabular}{lllllllll}
\hline
Summary of computational transaction \tabularnewline
Raw Input & view raw input (R code)  \tabularnewline
Raw Output & view raw output of R engine  \tabularnewline
Computing time & 1 seconds \tabularnewline
R Server & 'RServer@AstonUniversity' @ vre.aston.ac.uk \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=114296&T=0

[TABLE]
[ROW][C]Summary of computational transaction[/C][/ROW]
[ROW][C]Raw Input[/C][C]view raw input (R code) [/C][/ROW]
[ROW][C]Raw Output[/C][C]view raw output of R engine [/C][/ROW]
[ROW][C]Computing time[/C][C]1 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'RServer@AstonUniversity' @ vre.aston.ac.uk[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=114296&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=114296&T=0

As an alternative you can also use a QR Code:  
QR Code


The GUIDs for individual cells are displayed in the table below:

Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time1 seconds
R Server'RServer@AstonUniversity' @ vre.aston.ac.uk






Pearson Product Moment Correlation - Ungrouped Data
StatisticVariable XVariable Y
Mean1506.026964285718.21428571428571
Biased Variance40406.52890328441.08586734693878
Biased Standard Deviation201.0137530202461.0420495894816
Covariance-102.934392207792
Correlation-0.482637439211923
Determination0.232938897729043
T-Test-4.04951402880142
p-value (2 sided)0.000165145557733219
p-value (1 sided)8.25727788666095e-05
Degrees of Freedom54
Number of Observations56

\begin{tabular}{lllllllll}
\hline
Pearson Product Moment Correlation - Ungrouped Data \tabularnewline
Statistic & Variable X & Variable Y \tabularnewline
Mean & 1506.02696428571 & 8.21428571428571 \tabularnewline
Biased Variance & 40406.5289032844 & 1.08586734693878 \tabularnewline
Biased Standard Deviation & 201.013753020246 & 1.0420495894816 \tabularnewline
Covariance & -102.934392207792 \tabularnewline
Correlation & -0.482637439211923 \tabularnewline
Determination & 0.232938897729043 \tabularnewline
T-Test & -4.04951402880142 \tabularnewline
p-value (2 sided) & 0.000165145557733219 \tabularnewline
p-value (1 sided) & 8.25727788666095e-05 \tabularnewline
Degrees of Freedom & 54 \tabularnewline
Number of Observations & 56 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=114296&T=1

[TABLE]
[ROW][C]Pearson Product Moment Correlation - Ungrouped Data[/C][/ROW]
[ROW][C]Statistic[/C][C]Variable X[/C][C]Variable Y[/C][/ROW]
[ROW][C]Mean[/C][C]1506.02696428571[/C][C]8.21428571428571[/C][/ROW]
[ROW][C]Biased Variance[/C][C]40406.5289032844[/C][C]1.08586734693878[/C][/ROW]
[ROW][C]Biased Standard Deviation[/C][C]201.013753020246[/C][C]1.0420495894816[/C][/ROW]
[ROW][C]Covariance[/C][C]-102.934392207792[/C][/ROW]
[ROW][C]Correlation[/C][C]-0.482637439211923[/C][/ROW]
[ROW][C]Determination[/C][C]0.232938897729043[/C][/ROW]
[ROW][C]T-Test[/C][C]-4.04951402880142[/C][/ROW]
[ROW][C]p-value (2 sided)[/C][C]0.000165145557733219[/C][/ROW]
[ROW][C]p-value (1 sided)[/C][C]8.25727788666095e-05[/C][/ROW]
[ROW][C]Degrees of Freedom[/C][C]54[/C][/ROW]
[ROW][C]Number of Observations[/C][C]56[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=114296&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=114296&T=1

As an alternative you can also use a QR Code:  
QR Code


The GUIDs for individual cells are displayed in the table below:

Pearson Product Moment Correlation - Ungrouped Data
StatisticVariable XVariable Y
Mean1506.026964285718.21428571428571
Biased Variance40406.52890328441.08586734693878
Biased Standard Deviation201.0137530202461.0420495894816
Covariance-102.934392207792
Correlation-0.482637439211923
Determination0.232938897729043
T-Test-4.04951402880142
p-value (2 sided)0.000165145557733219
p-value (1 sided)8.25727788666095e-05
Degrees of Freedom54
Number of Observations56


Figures (Output of Computation)

Input Parameters & R Code

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$estimate)[1,1]
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Pearson Product Moment Correlation - Ungrouped Data',3,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Statistic',1,TRUE)
a<-table.element(a,'Variable X',1,TRUE)
a<-table.element(a,'Variable Y',1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('arithmetic_mean.htm','Mean',''),header=TRUE)
a<-table.element(a,mean(x))
a<-table.element(a,mean(y))
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('biased.htm','Biased Variance',''),header=TRUE)
a<-table.element(a,varx)
a<-table.element(a,vary)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('biased1.htm','Biased Standard Deviation',''),header=TRUE)
a<-table.element(a,sqrt(varx))
a<-table.element(a,sqrt(vary))
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('covariance.htm','Covariance',''),header=TRUE)
a<-table.element(a,cov(x,y),2)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('pearson_correlation.htm','Correlation',''),header=TRUE)
a<-table.element(a,cxy,2)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('coeff_of_determination.htm','Determination',''),header=TRUE)
a<-table.element(a,cxy*cxy,2)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('ttest_statistic.htm','T-Test',''),header=TRUE)
a<-table.element(a,as.matrix(corxy$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')