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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Module--
Title produced by softwareChi-Squared Test, McNemar Test, and Fisher Exact Test
Date of computationMon, 14 Nov 2011 10:55:28 -0500
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2011/Nov/14/t13212861415hafrhqvhv9ziwj.htm/, Retrieved Thu, 25 Apr 2024 11:12:03 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=142056, Retrieved Thu, 25 Apr 2024 11:12:03 +0000
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Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact80

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Chi-Squared Test, McNemar Test, and Fisher Exact Test] [Chi] [2011-11-14 15:37:46] [25b6caf3839c2bdc14961e5bff2d6373]
- RM      [Chi-Squared Test, McNemar Test, and Fisher Exact Test] [tk1chi] [2011-11-14 15:55:28] [2adf2d2c11e011c12275478b9efd18e5] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
'A'	'Connected'
'A'	'Connected'
'D'	'Connected'
'D'	'Connected'
'B'	'Connected'
'B'	'Connected'
'A'	'Connected'
'B'	'Connected'
'B'	'Connected'
'A'	'Connected'
'A'	'Connected'
'B'	'Connected'
'A'	'Connected'
'A'	'Connected'
'C'	'Connected'
'C'	'Connected'
'B'	'Connected'
'A'	'Connected'
'A'	'Connected'
'C'	'Connected'
'C'	'Connected'
'D'	'Connected'
'A'	'Connected'
'A'	'Connected'
'A'	'Connected'
'A'	'Connected'
'B'	'Connected'
'C'	'Connected'
'C'	'Connected'
'B'	'Connected'
'D'	'Connected'
'D'	'Connected'
'A'	'Connected'
'B'	'Connected'
'B'	'Connected'
'C'	'Connected'
'D'	'Connected'
'B'	'Connected'
'D'	'Connected'
'B'	'Connected'
'A'	'Connected'
'B'	'Connected'
'A'	'Connected'
'B'	'Connected'
'A'	'Connected'
'A'	'Connected'
'A'	'Connected'
'C'	'Connected'
'B'	'Connected'
'A'	'Connected'
'C'	'Connected'
'C'	'Connected'
'C'	'Connected'
'B'	'Connected'
'C'	'Connected'
'A'	'Connected'
'A'	'Connected'
'D'	'Connected'
'A'	'Connected'
'B'	'Connected'
'D'	'Connected'
'A'	'Connected'
'B'	'Connected'
'D'	'Connected'
'B'	'Connected'
'B'	'Connected'
'B'	'Connected'
'D'	'Connected'
'A'	'Connected'
'B'	'Connected'
'A'	'Connected'
'D'	'Connected'
'B'	'Connected'
'A'	'Connected'
'B'	'Connected'
'A'	'Connected'
'A'	'Connected'
'B'	'Connected'
'D'	'Connected'
'A'	'Connected'
'C'	'Connected'
'A'	'Connected'
'B'	'Connected'
'A'	'Connected'
'C'	'Connected'
'C'	'Connected'
'A'	'Connected'
'C'	'Connected'
'D'	'Connected'
'C'	'Connected'
'D'	'Connected'
'B'	'Connected'
'B'	'Connected'
'C'	'Connected'
'D'	'Connected'
'A'	'Connected'
'A'	'Connected'
'B'	'Connected'
'A'	'Connected'
'C'	'Connected'
'A'	'Connected'
'A'	'Connected'
'B'	'Connected'
'C'	'Connected'
'C'	'Connected'
'A'	'Connected'
'A'	'Connected'
'A'	'Connected'
'B'	'Connected'
'A'	'Connected'
'D'	'Connected'
'D'	'Connected'
'C'	'Connected'
'C'	'Connected'
'A'	'Connected'
'A'	'Connected'
'C'	'Connected'
'B'	'Connected'
'C'	'Connected'
'A'	'Connected'
'C'	'Connected'
'D'	'Connected'
'A'	'Connected'
'A'	'Connected'
'C'	'Connected'
'D'	'Connected'
'A'	'Connected'
'A'	'Connected'
'C'	'Connected'
'B'	'Connected'
'C'	'Connected'
'D'	'Connected'
'A'	'Connected'
'D'	'Connected'
'A'	'Connected'
'C'	'Connected'
'D'	'Connected'
'B'	'Connected'
'D'	'Connected'
'B'	'Connected'
'D'	'Connected'
'C'	'Connected'
'D'	'Connected'
'D'	'Connected'
'D'	'Connected'
'A'	'Connected'
'C'	'Connected'
'B'	'Connected'
'C'	'Connected'
'B'	'Connected'
'A'	'Connected'
'A'	'Connected'
'B'	'Connected'
'B'	'Connected'
'B'	'Connected'
'C'	'Connected'
'B'	'Connected'
'C'	'Connected'
'C'	'Connected'
'B'	'Connected'
'C'	'Connected'
'B'	'Connected'

'A'	'Separate'
'C'	'Separate'
'B'	'Separate'
'C'	'Separate'
'A'	'Separate'
'D'	'Separate'
'D'	'Separate'
'B'	'Separate'
'B'	'Separate'
'A'	'Separate'
'D'	'Separate'
'B'	'Separate'
'B'	'Separate'
'A'	'Separate'
'A'	'Separate'
'C'	'Separate'
'C'	'Separate'
'A'	'Separate'
'A'	'Separate'
'C'	'Separate'
'C'	'Separate'
'D'	'Separate'
'A'	'Separate'
'A'	'Separate'
'C'	'Separate'
'C'	'Separate'
'B'	'Separate'
'A'	'Separate'
'C'	'Separate'
'C'	'Separate'
'D'	'Separate'
'C'	'Separate'
'D'	'Separate'
'A'	'Separate'
'D'	'Separate'
'C'	'Separate'
'D'	'Separate'
'C'	'Separate'
'D'	'Separate'
'C'	'Separate'
'C'	'Separate'
'C'	'Separate'
'C'	'Separate'
'C'	'Separate'
'D'	'Separate'
'B'	'Separate'
'A'	'Separate'
'B'	'Separate'
'A'	'Separate'
'C'	'Separate'
'A'	'Separate'
'D'	'Separate'
'C'	'Separate'
'A'	'Separate'
'C'	'Separate'
'C'	'Separate'
'B'	'Separate'
'B'	'Separate'
'B'	'Separate'
'B'	'Separate'
'D'	'Separate'
'B'	'Separate'
'B'	'Separate'
'B'	'Separate'
'D'	'Separate'
'A'	'Separate'
'B'	'Separate'
'D'	'Separate'
'A'	'Separate'
'A'	'Separate'
'B'	'Separate'
'A'	'Separate'
'A'	'Separate'
'A'	'Separate'
'D'	'Separate'
'D'	'Separate'
'A'	'Separate'
'D'	'Separate'
'D'	'Separate'
'D'	'Separate'
'B'	'Separate'
'A'	'Separate'
'A'	'Separate'
'C'	'Separate'
'B'	'Separate'
'D'	'Separate'
'A'	'Separate'
'B'	'Separate'
'C'	'Separate'
'C'	'Separate'
'B'	'Separate'
'C'	'Separate'
'A'	'Separate'
'D'	'Separate'
'D'	'Separate'
'B'	'Separate'
'B'	'Separate'
'D'	'Separate'
'B'	'Separate'
'B'	'Separate'
'B'	'Separate'
'B'	'Separate'
'A'	'Separate'
'D'	'Separate'
'A'	'Separate'
'C'	'Separate'
'B'	'Separate'
'A'	'Separate'
'B'	'Separate'
'A'	'Separate'
'B'	'Separate'
'C'	'Separate'
'A'	'Separate'
'C'	'Separate'
'B'	'Separate'
'C'	'Separate'
'A'	'Separate'
'A'	'Separate'
'B'	'Separate'
'B'	'Separate'
'A'	'Separate'
'D'	'Separate'
'A'	'Separate'
'A'	'Separate'
'D'	'Separate'
'C'	'Separate'
'C'	'Separate'
'A'	'Separate'
'B'	'Separate'
'C'	'Separate'
'C'	'Separate'
'C'	'Separate'
'A'	'Separate'
'D'	'Separate'
'A'	'Separate'
'D'	'Separate'
'D'	'Separate'
'B'	'Separate'
'B'	'Separate'
'B'	'Separate'
'B'	'Separate'
'B'	'Separate'
'B'	'Separate'
'B'	'Separate'
'D'	'Separate'
'D'	'Separate'
'D'	'Separate'
'B'	'Separate'
'D'	'Separate'
'C'	'Separate'
'A'	'Separate'
'A'	'Separate'
'A'	'Separate'
'A'	'Separate'
'B'	'Separate'
'D'	'Separate'
'C'	'Separate'
'A'	'Separate'
'B'	'Separate'
'C'	'Separate'
'B'	'Separate'
'B'	'Separate'

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'Herman Ole Andreas Wold' @ wold.wessa.net
R Framework error message
Warning: there are blank lines in the 'Data' field.
Please, use NA for missing data - blank lines are simply
 deleted and are NOT treated as missing values.

\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 & 'Herman Ole Andreas Wold' @ wold.wessa.net \tabularnewline
R Framework error message & 
Warning: there are blank lines in the 'Data' field.
Please, use NA for missing data - blank lines are simply
 deleted and are NOT treated as missing values.
 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=142056&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]'Herman Ole Andreas Wold' @ wold.wessa.net[/C][/ROW]
[ROW][C]R Framework error message[/C][C]
Warning: there are blank lines in the 'Data' field.
Please, use NA for missing data - blank lines are simply
 deleted and are NOT treated as missing values.
[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=142056&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=142056&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'Herman Ole Andreas Wold' @ wold.wessa.net
R Framework error message
Warning: there are blank lines in the 'Data' field.
Please, use NA for missing data - blank lines are simply
 deleted and are NOT treated as missing values.






Tabulation of Results
Score x Behandeling
ConnectedSeparate
A5444
B4346
C3738
D2834

\begin{tabular}{lllllllll}
\hline
Tabulation of Results \tabularnewline
Score  x  Behandeling \tabularnewline
  & Connected & Separate \tabularnewline
A & 54 & 44 \tabularnewline
B & 43 & 46 \tabularnewline
C & 37 & 38 \tabularnewline
D & 28 & 34 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=142056&T=1

[TABLE]
[ROW][C]Tabulation of Results[/C][/ROW]
[ROW][C]Score  x  Behandeling[/C][/ROW]
[ROW][C] [/C][C]Connected[/C][C]Separate[/C][/ROW]
[C]A[/C][C]54[/C][C]44[/C][/ROW]
[C]B[/C][C]43[/C][C]46[/C][/ROW]
[C]C[/C][C]37[/C][C]38[/C][/ROW]
[C]D[/C][C]28[/C][C]34[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=142056&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=142056&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:

Tabulation of Results
Score x Behandeling
ConnectedSeparate
A5444
B4346
C3738
D2834






Tabulation of Expected Results
Score x Behandeling
ConnectedSeparate
A4949
B44.544.5
C37.537.5
D3131

\begin{tabular}{lllllllll}
\hline
Tabulation of Expected Results \tabularnewline
Score  x  Behandeling \tabularnewline
  & Connected & Separate \tabularnewline
A & 49 & 49 \tabularnewline
B & 44.5 & 44.5 \tabularnewline
C & 37.5 & 37.5 \tabularnewline
D & 31 & 31 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=142056&T=2

[TABLE]
[ROW][C]Tabulation of Expected Results[/C][/ROW]
[ROW][C]Score  x  Behandeling[/C][/ROW]
[ROW][C] [/C][C]Connected[/C][C]Separate[/C][/ROW]
[C]A[/C][C]49[/C][C]49[/C][/ROW]
[C]B[/C][C]44.5[/C][C]44.5[/C][/ROW]
[C]C[/C][C]37.5[/C][C]37.5[/C][/ROW]
[C]D[/C][C]31[/C][C]31[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=142056&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=142056&T=2

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


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

Tabulation of Expected Results
Score x Behandeling
ConnectedSeparate
A4949
B44.544.5
C37.537.5
D3131






Statistical Results
Pearson's Chi-squared test
Pearson Chi Square Statistic1.72
Degrees of Freedom3
P value0.63

\begin{tabular}{lllllllll}
\hline
Statistical Results \tabularnewline
Pearson's Chi-squared test \tabularnewline
Pearson Chi Square Statistic & 1.72 \tabularnewline
Degrees of Freedom & 3 \tabularnewline
P value & 0.63 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=142056&T=3

[TABLE]
[ROW][C]Statistical Results[/C][/ROW]
[ROW][C]Pearson's Chi-squared test[/C][/ROW]
[ROW][C]Pearson Chi Square Statistic[/C][C]1.72[/C][/ROW]
[ROW][C]Degrees of Freedom[/C][C]3[/C][/ROW]
[ROW][C]P value[/C][C]0.63[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=142056&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=142056&T=3

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


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

Statistical Results
Pearson's Chi-squared test
Pearson Chi Square Statistic1.72
Degrees of Freedom3
P value0.63


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = 1 ; par2 = 2 ; par3 = Pearson Chi-Squared ;
Parameters (R input):
par1 = 1 ; par2 = 2 ; par3 = Pearson Chi-Squared ; par4 = ; par5 = ; par6 = ; par7 = ; par8 = ; par9 = ; par10 = ; par11 = ; par12 = ; par13 = ; par14 = ; par15 = ; par16 = ; par17 = ; par18 = ; par19 = ; par20 = ;
R code (references can be found in the software module):
library(vcd)
cat1 <- as.numeric(par1) #
cat2<- as.numeric(par2) #
simulate.p.value=FALSE
if (par3 == 'Exact Pearson Chi-Squared by Simulation') simulate.p.value=TRUE
x <- t(x)
(z <- array(unlist(x),dim=c(length(x[,1]),length(x[1,]))))
(table1 <- table(z[,cat1],z[,cat2]))
(V1<-dimnames(y)[[1]][cat1])
(V2<-dimnames(y)[[1]][cat2])
bitmap(file='pic1.png')
assoc(ftable(z[,cat1],z[,cat2],row.vars=1,dnn=c(V1,V2)),shade=T)
dev.off()
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Tabulation of Results',ncol(table1)+1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,paste(V1,' x ', V2),ncol(table1)+1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a, ' ', 1,TRUE)
for(nc in 1:ncol(table1)){
a<-table.element(a, colnames(table1)[nc], 1, TRUE)
}
a<-table.row.end(a)
for(nr in 1:nrow(table1) ){
a<-table.element(a, rownames(table1)[nr], 1, TRUE)
for(nc in 1:ncol(table1) ){
a<-table.element(a, table1[nr, nc], 1, FALSE)
}
a<-table.row.end(a)
}
a<-table.end(a)
table.save(a,file='mytable.tab')
(cst<-chisq.test(table1, simulate.p.value=simulate.p.value) )
if (par3 == 'McNemar Chi-Squared') {
(cst <- mcnemar.test(table1))
}
if (par3=='Fisher Exact Test') {
(cst <- fisher.test(table1))
}
if ((par3 != 'McNemar Chi-Squared') & (par3 != 'Fisher Exact Test')) {
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Tabulation of Expected Results',ncol(table1)+1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,paste(V1,' x ', V2),ncol(table1)+1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a, ' ', 1,TRUE)
for(nc in 1:ncol(table1)){
a<-table.element(a, colnames(table1)[nc], 1, TRUE)
}
a<-table.row.end(a)
for(nr in 1:nrow(table1) ){
a<-table.element(a, rownames(table1)[nr], 1, TRUE)
for(nc in 1:ncol(table1) ){
a<-table.element(a, round(cst$expected[nr, nc], digits=2), 1, FALSE)
}
a<-table.row.end(a)
}
a<-table.end(a)
table.save(a,file='mytable1.tab')
}
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Statistical Results',2,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a, cst$method, 2,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
if (par3=='Pearson Chi-Squared') a<-table.element(a, 'Pearson Chi Square Statistic', 1, TRUE)
if (par3=='Exact Pearson Chi-Squared by Simulation') a<-table.element(a, 'Exact Pearson Chi Square Statistic', 1, TRUE)
if (par3=='McNemar Chi-Squared') a<-table.element(a, 'McNemar Chi Square Statistic', 1, TRUE)
if (par3=='Fisher Exact Test') a<-table.element(a, 'Odds Ratio', 1, TRUE)
if (par3=='Fisher Exact Test') {
if ((ncol(table1) == 2) & (nrow(table1) == 2)) {
a<-table.element(a, round(cst$estimate, digits=2), 1,FALSE)
} else {
a<-table.element(a, '--', 1,FALSE)
}
} else {
a<-table.element(a, round(cst$statistic, digits=2), 1,FALSE)
}
a<-table.row.end(a)
if(!simulate.p.value){
if(par3!='Fisher Exact Test') {
a<-table.row.start(a)
a<-table.element(a, 'Degrees of Freedom', 1, TRUE)
a<-table.element(a, cst$parameter, 1,FALSE)
a<-table.row.end(a)
}
}
a<-table.row.start(a)
a<-table.element(a, 'P value', 1, TRUE)
a<-table.element(a, round(cst$p.value, digits=2), 1,FALSE)
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable2.tab')