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Description of Statistical Computation

Author's title

Author*Unverified author*
R Software Module--
Title produced by softwareChi-Squared Test, McNemar Test, and Fisher Exact Test
Date of computationWed, 21 Dec 2011 05:18:31 -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/Dec/21/t1324462806dnzil32j0726ytv.htm/, Retrieved Fri, 01 Nov 2024 00:35:16 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=158441, Retrieved Fri, 01 Nov 2024 00:35:16 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact127

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Chi-Squared and McNemar Tests] [] [2010-11-16 15:24:16] [b98453cac15ba1066b407e146608df68]
- RM      [Chi-Squared Test, McNemar Test, and Fisher Exact Test] [Chi kwadraat HI e...] [2011-12-21 10:18:31] [d41d8cd98f00b204e9800998ecf8427e] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
'HI'	'HI'	'LO'	'HI'	'HI'	'HI'
'HI'	'LO'	'HI'	'HI'	'HI'	'LO'
'LO'	'HI'	'HI'	'HI'	'LO'	'HI'
'LO'	'LO'	'LO'	'LO'	'LO'	'HI'
'HI'	'HI'	'LO'	'HI'	'HI'	'HI'
'HI'	'LO'	'LO'	'LO'	'HI'	'HI'
'HI'	'LO'	'HI'	'HI'	'HI'	'HI'
'HI'	'HI'	'LO'	'HI'	'HI'	'LO'
'HI'	'HI'	'LO'	'HI'	'HI'	'LO'
'HI'	'HI'	'LO'	'LO'	'HI'	'HI'
'HI'	'LO'	'HI'	'LO'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'LO'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'LO'	'HI'	'HI'	'HI'	'HI'	'LO'
'LO'	'LO'	'LO'	'HI'	'HI'	'HI'
'HI'	'LO'	'LO'	'LO'	'HI'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'LO'	'LO'	'HI'	'HI'	'HI'	'HI'
'LO'	'LO'	'HI'	'HI'	'HI'	'LO'
'LO'	'LO'	'HI'	'HI'	'LO'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'HI'	'HI'	'HI'	'HI'	'LO'	'HI'
'HI'	'LO'	'HI'	'LO'	'HI'	'LO'
'HI'	'LO'	'HI'	'HI'	'LO'	'LO'
'HI'	'HI'	'HI'	'LO'	'HI'	'LO'
'LO'	'HI'	'LO'	'HI'	'HI'	'HI'
'LO'	'LO'	'HI'	'HI'	'HI'	'HI'
'HI'	'LO'	'LO'	'LO'	'LO'	'HI'
'LO'	'LO'	'LO'	'HI'	'HI'	'LO'
'LO'	'LO'	'LO'	'LO'	'LO'	'HI'
'HI'	'LO'	'LO'	'LO'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'HI'	'LO'	'LO'	'HI'	'HI'	'HI'
'LO'	'LO'	'LO'	'LO'	'HI'	'LO'
'LO'	'LO'	'LO'	'LO'	'LO'	'HI'
'HI'	'LO'	'LO'	'HI'	'HI'	'HI'
'LO'	'LO'	'HI'	'LO'	'HI'	'LO'
'HI'	'LO'	'HI'	'LO'	'LO'	'LO'
'HI'	'LO'	'HI'	'LO'	'HI'	'LO'
'HI'	'LO'	'LO'	'HI'	'HI'	'HI'
'HI'	'LO'	'HI'	'HI'	'HI'	'LO'
'HI'	'LO'	'LO'	'LO'	'LO'	'HI'
'HI'	'LO'	'LO'	'LO'	'LO'	'LO'
'HI'	'HI'	'LO'	'HI'	'LO'	'HI'
'HI'	'HI'	'LO'	'HI'	'HI'	'LO'
'LO'	'HI'	'LO'	'HI'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'HI'	'LO'	'LO'	'HI'	'LO'	'LO'
'LO'	'HI'	'HI'	'HI'	'HI'	'LO'
'LO'	'LO'	'LO'	'LO'	'HI'	'HI'
'LO'	'LO'	'LO'	'HI'	'LO'	'HI'
'HI'	'HI'	'HI'	'HI'	'LO'	'HI'
'LO'	'LO'	'LO'	'LO'	'LO'	'LO'
'HI'	'LO'	'LO'	'LO'	'HI'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'LO'	'HI'	'HI'	'HI'	'HI'	'LO'
'HI'	'HI'	'LO'	'HI'	'LO'	'LO'
'HI'	'HI'	'HI'	'LO'	'LO'	'HI'
'LO'	'LO'	'LO'	'LO'	'LO'	'HI'
'HI'	'HI'	'HI'	'HI'	'LO'	'HI'
'HI'	'HI'	'HI'	'HI'	'LO'	'HI'
'LO'	'HI'	'LO'	'HI'	'HI'	'HI'
'HI'	'LO'	'HI'	'HI'	'HI'	'HI'
'HI'	'HI'	'HI'	'HI'	'LO'	'LO'
'HI'	'HI'	'HI'	'HI'	'LO'	'HI'
'LO'	'LO'	'HI'	'HI'	'LO'	'HI'
'HI'	'HI'	'LO'	'HI'	'HI'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'HI'	'HI'	'LO'	'LO'	'HI'	'HI'
'LO'	'HI'	'LO'	'HI'	'HI'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'HI'	'LO'	'HI'	'HI'	'LO'	'LO'
'HI'	'LO'	'HI'	'LO'	'LO'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'HI'	'LO'	'HI'	'HI'	'LO'	'HI'
'LO'	'LO'	'LO'	'HI'	'HI'	'HI'
'HI'	'LO'	'HI'	'HI'	'LO'	'LO'
'LO'	'HI'	'HI'	'HI'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'HI'	'LO'	'LO'	'HI'	'HI'	'HI'
'LO'	'HI'	'LO'	'HI'	'HI'	'HI'
'LO'	'LO'	'HI'	'LO'	'HI'	'HI'
'HI'	'HI'	'LO'	'LO'	'HI'	'HI'
'LO'	'HI'	'HI'	'HI'	'HI'	'HI'
'LO'	'LO'	'HI'	'HI'	'LO'	'HI'
'LO'	'LO'	'LO'	'HI'	'LO'	'HI'
'LO'	'HI'	'LO'	'LO'	'HI'	'HI'
'HI'	'LO'	'HI'	'HI'	'LO'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'LO'	'LO'	'LO'	'HI'	'HI'	'HI'
'LO'	'LO'	'LO'	'HI'	'LO'	'LO'
'HI'	'HI'	'HI'	'LO'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'LO'	'HI'
'HI'	'LO'	'HI'	'LO'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'LO'	'HI'	'LO'	'LO'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'LO'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'LO'	'LO'	'LO'	'HI'	'LO'	'LO'
'LO'	'HI'	'HI'	'HI'	'HI'	'HI'
'HI'	'LO'	'LO'	'HI'	'LO'	'HI'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'HI'	'HI'	'HI'	'HI'	'LO'	'HI'
'HI'	'HI'	'LO'	'LO'	'LO'	'HI'
'LO'	'HI'	'HI'	'HI'	'HI'	'HI'
'LO'	'LO'	'HI'	'HI'	'LO'	'HI'
'LO'	'HI'	'HI'	'HI'	'LO'	'LO'
'LO'	'LO'	'LO'	'HI'	'HI'	'HI'
'HI'	'HI'	'LO'	'LO'	'HI'	'HI'
'HI'	'LO'	'HI'	'HI'	'HI'	'LO'
'LO'	'HI'	'LO'	'HI'	'HI'	'HI'
'HI'	'HI'	'LO'	'LO'	'HI'	'HI'
'LO'	'HI'	'LO'	'HI'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'HI'
'LO'	'HI'	'LO'	'HI'	'LO'	'HI'
'LO'	'LO'	'HI'	'HI'	'HI'	'HI'
'HI'	'HI'	'LO'	'HI'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'LO'	'LO'	'LO'	'HI'	'HI'	'LO'
'LO'	'LO'	'HI'	'HI'	'LO'	'LO'
'HI'	'LO'	'LO'	'LO'	'HI'	'LO'
'HI'	'HI'	'HI'	'HI'	'HI'	'LO'
'LO'	'HI'	'LO'	'LO'	'HI'	'LO'
'HI'	'LO'	'LO'	'HI'	'HI'	'HI'
'LO'	'LO'	'HI'	'LO'	'LO'	'LO'
'LO'	'LO'	'LO'	'HI'	'LO'	'HI'
'HI'	'HI'	'HI'	'LO'	'HI'	'LO'
'LO'	'LO'	'LO'	'HI'	'HI'	'HI'
'HI'	'HI'	'LO'	'HI'	'HI'	'HI'
'LO'	'LO'	'LO'	'HI'	'HI'	'HI'
'LO'	'LO'	'LO'	'LO'	'LO'	'HI'
'HI'	'HI'	'LO'	'HI'	'HI'	'HI'
'LO'	'HI'	'LO'	'LO'	'LO'	'HI'
'HI'	'HI'	'LO'	'LO'	'HI'	'LO'
'LO'	'HI'	'LO'	'LO'	'LO'	'HI'
'LO'	'HI'	'HI'	'LO'	'HI'	'LO'
'LO'	'HI'	'LO'	'LO'	'HI'	'HI'
'LO'	'HI'	'HI'	'HI'	'HI'	'HI'
'LO'	'LO'	'HI'	'HI'	'HI'	'HI'
'HI'	'LO'	'LO'	'LO'	'HI'	'LO'
'LO'	'LO'	'HI'	'HI'	'HI'	'HI'
'HI'	'HI'	'LO'	'HI'	'LO'	'HI'
'LO'	'LO'	'HI'	'HI'	'LO'	'LO'
'HI'	'LO'	'LO'	'LO'	'LO'	'HI'
'HI'	'HI'	'LO'	'LO'	'HI'	'HI'
'HI'	'HI'	'LO'	'HI'	'LO'	'HI'
'HI'	'HI'	'HI'	'LO'	'HI'	'LO'
'HI'	'HI'	'HI'	'LO'	'LO'	'HI'
'HI'	'HI'	'LO'	'LO'	'LO'	'HI'
'LO'	'LO'	'LO'	'LO'	'LO'	'HI'
'HI'	'LO'	'HI'	'HI'	'LO'	'HI'
'LO'	'HI'	'LO'	'LO'	'HI'	'HI'
'LO'	'HI'	'LO'	'LO'	'HI'	'LO'
'HI'	'LO'	'HI'	'HI'	'LO'	'LO'
'LO'	'HI'	'LO'	'LO'	'LO'	'HI'
'HI'	'HI'	'LO'	'LO'	'LO'	'HI'

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R Server'AstonUniversity' @ aston.wessa.net

\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 & 2 seconds \tabularnewline
R Server & 'AstonUniversity' @ aston.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=158441&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]2 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'AstonUniversity' @ aston.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=158441&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=158441&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 time2 seconds
R Server'AstonUniversity' @ aston.wessa.net






Tabulation of Results
Depression x Connected
HILO
HI5743
LO4022

\begin{tabular}{lllllllll}
\hline
Tabulation of Results \tabularnewline
Depression  x  Connected \tabularnewline
  & HI & LO \tabularnewline
HI & 57 & 43 \tabularnewline
LO & 40 & 22 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=158441&T=1

[TABLE]
[ROW][C]Tabulation of Results[/C][/ROW]
[ROW][C]Depression  x  Connected[/C][/ROW]
[ROW][C] [/C][C]HI[/C][C]LO[/C][/ROW]
[C]HI[/C][C]57[/C][C]43[/C][/ROW]
[C]LO[/C][C]40[/C][C]22[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=158441&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=158441&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
Depression x Connected
HILO
HI5743
LO4022






Tabulation of Expected Results
Depression x Connected
HILO
HI59.8840.12
LO37.1224.88

\begin{tabular}{lllllllll}
\hline
Tabulation of Expected Results \tabularnewline
Depression  x  Connected \tabularnewline
  & HI & LO \tabularnewline
HI & 59.88 & 40.12 \tabularnewline
LO & 37.12 & 24.88 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=158441&T=2

[TABLE]
[ROW][C]Tabulation of Expected Results[/C][/ROW]
[ROW][C]Depression  x  Connected[/C][/ROW]
[ROW][C] [/C][C]HI[/C][C]LO[/C][/ROW]
[C]HI[/C][C]59.88[/C][C]40.12[/C][/ROW]
[C]LO[/C][C]37.12[/C][C]24.88[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=158441&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=158441&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
Depression x Connected
HILO
HI59.8840.12
LO37.1224.88






Statistical Results
Pearson's Chi-squared test with Yates' continuity correction
Chi Square Statistic0.61
Degrees of Freedom1
P value0.43

\begin{tabular}{lllllllll}
\hline
Statistical Results \tabularnewline
Pearson's Chi-squared test with Yates' continuity correction \tabularnewline
Chi Square Statistic & 0.61 \tabularnewline
Degrees of Freedom & 1 \tabularnewline
P value & 0.43 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=158441&T=3

[TABLE]
[ROW][C]Statistical Results[/C][/ROW]
[ROW][C]Pearson's Chi-squared test with Yates' continuity correction[/C][/ROW]
[ROW][C]Chi Square Statistic[/C][C]0.61[/C][/ROW]
[ROW][C]Degrees of Freedom[/C][C]1[/C][/ROW]
[ROW][C]P value[/C][C]0.43[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=158441&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=158441&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 with Yates' continuity correction
Chi Square Statistic0.61
Degrees of Freedom1
P value0.43


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = 6 ; par2 = 1 ; par3 = Pearson Chi-Squared ;
Parameters (R input):
par1 = 6 ; par2 = 1 ; 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 != 'McNemar Chi-Squared') {
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)
a<-table.element(a, 'Chi Square Statistic', 1, TRUE)
a<-table.element(a, round(cst$statistic, digits=2), 1,FALSE)
a<-table.row.end(a)
if(!simulate.p.value){
a<-table.row.start(a)
a<-table.element(a, 'Degrees of Freedom', 1, TRUE)
a<-table.element(a, cst$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')