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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_chi_squared_tests.wasp
Title produced by softwareChi-Squared and McNemar Tests
Date of computationTue, 09 Nov 2010 10:02:55 +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/Nov/09/t12892968828w2y19lpjxq9i1b.htm/, Retrieved Sun, 28 Apr 2024 06:37:34 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=92905, Retrieved Sun, 28 Apr 2024 06:37:34 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact171

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] [chi-squared] [2010-11-09 08:01:30] [4a7069087cf9e0eda253aeed7d8c30d6]
-    D  [Chi-Squared and McNemar Tests] [chi square 2] [2010-11-09 09:25:45] [247f085ab5b7724f755ad01dc754a3e8]
-    D      [Chi-Squared and McNemar Tests] [chi square 1] [2010-11-09 10:02:55] [9d72585f2b7b60ae977d4816136e1c95] [Current]
-    D        [Chi-Squared and McNemar Tests] [chi square hap vs...] [2010-11-09 10:06:13] [247f085ab5b7724f755ad01dc754a3e8]
-    D        [Chi-Squared and McNemar Tests] [chi square] [2010-11-11 08:36:20] [247f085ab5b7724f755ad01dc754a3e8]
-    D        [Chi-Squared and McNemar Tests] [chi square] [2010-11-11 08:39:19] [247f085ab5b7724f755ad01dc754a3e8]
-    D        [Chi-Squared and McNemar Tests] [chi square] [2010-11-11 08:40:56] [247f085ab5b7724f755ad01dc754a3e8]
-    D        [Chi-Squared and McNemar Tests] [chi square] [2010-11-11 08:42:28] [247f085ab5b7724f755ad01dc754a3e8]
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Dataset

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

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time16 seconds
R Server'George Udny Yule' @ 72.249.76.132
R Framework error message
The field 'Names of X columns' contains a hard return which cannot be interpreted.
Please, resubmit your request without hard returns in the 'Names of X columns'.

\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 & 16 seconds \tabularnewline
R Server & 'George Udny Yule' @ 72.249.76.132 \tabularnewline
R Framework error message & 
The field 'Names of X columns' contains a hard return which cannot be interpreted.
Please, resubmit your request without hard returns in the 'Names of X columns'.
 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=92905&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]16 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'George Udny Yule' @ 72.249.76.132[/C][/ROW]
[ROW][C]R Framework error message[/C][C]
The field 'Names of X columns' contains a hard return which cannot be interpreted.
Please, resubmit your request without hard returns in the 'Names of X columns'.
[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=92905&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=92905&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 time16 seconds
R Server'George Udny Yule' @ 72.249.76.132
R Framework error message
The field 'Names of X columns' contains a hard return which cannot be interpreted.
Please, resubmit your request without hard returns in the 'Names of X columns'.






Tabulation of Results
Score x Construct
ConnectedSeparate
HI9790
LO6572

\begin{tabular}{lllllllll}
\hline
Tabulation of Results \tabularnewline
Score  x  Construct
 \tabularnewline
  & Connected & Separate \tabularnewline
HI & 97 & 90 \tabularnewline
LO & 65 & 72 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=92905&T=1

[TABLE]
[ROW][C]Tabulation of Results[/C][/ROW]
[ROW][C]Score  x  Construct
[/C][/ROW]
[ROW][C] [/C][C]Connected[/C][C]Separate[/C][/ROW]
[C]HI[/C][C]97[/C][C]90[/C][/ROW]
[C]LO[/C][C]65[/C][C]72[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=92905&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=92905&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 Construct
ConnectedSeparate
HI9790
LO6572






Tabulation of Expected Results
Score x Construct
ConnectedSeparate
HI93.593.5
LO68.568.5

\begin{tabular}{lllllllll}
\hline
Tabulation of Expected Results \tabularnewline
Score  x  Construct
 \tabularnewline
  & Connected & Separate \tabularnewline
HI & 93.5 & 93.5 \tabularnewline
LO & 68.5 & 68.5 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=92905&T=2

[TABLE]
[ROW][C]Tabulation of Expected Results[/C][/ROW]
[ROW][C]Score  x  Construct
[/C][/ROW]
[ROW][C] [/C][C]Connected[/C][C]Separate[/C][/ROW]
[C]HI[/C][C]93.5[/C][C]93.5[/C][/ROW]
[C]LO[/C][C]68.5[/C][C]68.5[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=92905&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=92905&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 Construct
ConnectedSeparate
HI93.593.5
LO68.568.5






Statistical Results
Pearson's Chi-squared test with Yates' continuity correction
Chi Square Statistic0.46
Degrees of Freedom1
P value0.5

\begin{tabular}{lllllllll}
\hline
Statistical Results \tabularnewline
Pearson's Chi-squared test with Yates' continuity correction \tabularnewline
Chi Square Statistic & 0.46 \tabularnewline
Degrees of Freedom & 1 \tabularnewline
P value & 0.5 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=92905&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]0.46[/C][/ROW]
[ROW][C]Degrees of Freedom[/C][C]1[/C][/ROW]
[ROW][C]P value[/C][C]0.5[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=92905&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=92905&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 Statistic0.46
Degrees of Freedom1
P value0.5


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 ;
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')