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Description of Statistical Computation

Author's title

Author*Unverified author*
R Software Modulerwasp_correlation.wasp
Title produced by softwarePearson Correlation
Date of computationSun, 21 Oct 2007 13:20:01 -0700
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2007/Oct/21/6pcoqyu3x9v9is81192997719.htm/, Retrieved Thu, 09 May 2024 06:34:51 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=1210, Retrieved Thu, 09 May 2024 06:34:51 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact206

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Pearson Correlation] [Investigating Ass...] [2007-10-21 20:20:01] [640491d00f3c9cca22cbf779aa38ac16] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
101,50
126,60
93,90
89,80
93,40
101,50
110,40
105,90
108,40
113,90
86,10
69,40
101,20
100,50
98,00
106,60
90,10
96,90
125,90
112,00
100,00
123,90
79,80
83,40
113,60
112,90
104,00
109,90
99,00
106,30
128,90
111,10
102,90
130,00
87,00
87,50
117,60
103,40
110,80
112,60
102,50
112,40
135,60
105,10
127,70
137,00
91,00
90,50
122,40
123,30
124,30
120,00
118,10
119,00
142,70
123,60
129,60
146,90
108,70
99,40
Dataseries Y:
Download CSV
Histogram 
106,70
100,60
101,20
93,10
84,20
85,80
91,80
92,40
80,30
79,70
62,50
57,10
100,80
100,70
86,20
83,20
71,70
77,50
89,80
80,30
78,70
93,80
57,60
60,60
91,00
85,30
77,40
77,30
68,30
69,90
81,70
75,10
69,90
84,00
54,30
60,00
89,90
77,00
85,30
77,60
69,20
75,50
85,70
72,20
79,90
85,30
52,20
61,20
82,40
85,40
78,20
70,20
70,20
69,30
77,50
66,10
69,00
75,30
58,20
59,70

Tables (Output of Computation)





Summary of compuational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R Server'Herman Ole Andreas Wold' @ 193.190.124.10:1001

\begin{tabular}{lllllllll}
\hline
Summary of compuational transaction \tabularnewline
Raw Input & view raw input (R code)  \tabularnewline
Raw Output & view raw output of R engine  \tabularnewline
Computing time & 2 seconds \tabularnewline
R Server & 'Herman Ole Andreas Wold' @ 193.190.124.10:1001 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=1210&T=0

[TABLE]
[ROW][C]Summary of compuational 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]2 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Herman Ole Andreas Wold' @ 193.190.124.10:1001[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=1210&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=1210&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 compuational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R Server'Herman Ole Andreas Wold' @ 193.190.124.10:1001






Pearson Product Moment Correlation - Ungrouped Data
StatisticVariable XVariable Y
Mean108.9478.05
Biased Variance252.931066666667159.401833333333
Biased Standard Deviation15.903806672198512.6254438865861
Covariance69.1320338983051
Correlation0.338557431870186
Determination0.114621134674536
T-Test2.74019691505693
p-value (2 sided)0.00814682652579135
p-value (1 sided)0.00407341326289568
Degrees of Freedom58
Number of Observations60

\begin{tabular}{lllllllll}
\hline
Pearson Product Moment Correlation - Ungrouped Data \tabularnewline
Statistic & Variable X & Variable Y \tabularnewline
Mean & 108.94 & 78.05 \tabularnewline
Biased Variance & 252.931066666667 & 159.401833333333 \tabularnewline
Biased Standard Deviation & 15.9038066721985 & 12.6254438865861 \tabularnewline
Covariance & 69.1320338983051 \tabularnewline
Correlation & 0.338557431870186 \tabularnewline
Determination & 0.114621134674536 \tabularnewline
T-Test & 2.74019691505693 \tabularnewline
p-value (2 sided) & 0.00814682652579135 \tabularnewline
p-value (1 sided) & 0.00407341326289568 \tabularnewline
Degrees of Freedom & 58 \tabularnewline
Number of Observations & 60 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=1210&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]108.94[/C][C]78.05[/C][/ROW]
[ROW][C]Biased Variance[/C][C]252.931066666667[/C][C]159.401833333333[/C][/ROW]
[ROW][C]Biased Standard Deviation[/C][C]15.9038066721985[/C][C]12.6254438865861[/C][/ROW]
[ROW][C]Covariance[/C][C]69.1320338983051[/C][/ROW]
[ROW][C]Correlation[/C][C]0.338557431870186[/C][/ROW]
[ROW][C]Determination[/C][C]0.114621134674536[/C][/ROW]
[ROW][C]T-Test[/C][C]2.74019691505693[/C][/ROW]
[ROW][C]p-value (2 sided)[/C][C]0.00814682652579135[/C][/ROW]
[ROW][C]p-value (1 sided)[/C][C]0.00407341326289568[/C][/ROW]
[ROW][C]Degrees of Freedom[/C][C]58[/C][/ROW]
[ROW][C]Number of Observations[/C][C]60[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=1210&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=1210&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
Mean108.9478.05
Biased Variance252.931066666667159.401833333333
Biased Standard Deviation15.903806672198512.6254438865861
Covariance69.1320338983051
Correlation0.338557431870186
Determination0.114621134674536
T-Test2.74019691505693
p-value (2 sided)0.00814682652579135
p-value (1 sided)0.00407341326289568
Degrees of Freedom58
Number of Observations60


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')