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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_Two Factor ANOVA.wasp
Title produced by softwareTwo-Way ANOVA
Date of computationThu, 18 Dec 2014 11:31:25 +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/2014/Dec/18/t1418904023qjvsctlbdoj5897.htm/, Retrieved Fri, 17 May 2024 18:35:17 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=270836, Retrieved Fri, 17 May 2024 18:35:17 +0000
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Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact72

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Two-Way ANOVA] [Paper] [2014-12-18 11:31:25] [35f348c3c3a72505e6ab9e88b1cb72c0] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
11 1 0
19 1 1
16 1 0
24 1 1
15 1 1
17 1 1
19 1 0
19 1 1
28 1 1
26 1 1
15 1 1
26 1 1
16 1 1
24 1 0
25 1 0
22 0 0
15 1 1
21 1 0
22 0 1
27 1 0
26 1 1
26 1 1
22 1 0
21 1 1
22 1 1
20 1 1
21 0 1
20 0 0
22 1 1
21 1 0
8 1 0
22 1 0
20 1 1
24 1 1
17 1 1
20 1 1
23 1 0
20 0 1
22 1 1
19 1 0
15 1 1
20 1 1
22 1 1
17 1 1
14 0 1
24 1 0
17 1 1
23 0 1
25 1 0
16 0 1
18 0 1
20 0 1
18 1 1
23 0 1
24 1 1
23 1 1
13 0 0
20 1 1
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19 0 1
22 1 1
22 1 0
15 1 0
17 1 1
19 1 0
20 0 1
22 1 0
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21 1 1
16 0 0
20 1 0
21 1 0
20 0 0
23 0 1
18 1 0
16 1 0
17 0 1
24 1 0
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19 1 1
20 0 0
22 0 0
19 0 0
21 0 1
15 0 0
21 0 1
24 0 1
22 0 0
20 0 0
21 0 0
19 0 1
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11 0 0
17 0 1
22 0 0
20 0 1
22 0 1
15 0 1
23 0 1
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18 0 1
19 0 0
25 0 0
21 0 0
22 0 0
21 0 0
22 0 0
23 0 1
20 1 1
6 1 1
15 1 1
18 1 1

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'Sir Ronald Aylmer Fisher' @ fisher.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 & 'Sir Ronald Aylmer Fisher' @ fisher.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270836&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]'Sir Ronald Aylmer Fisher' @ fisher.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270836&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270836&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'Sir Ronald Aylmer Fisher' @ fisher.wessa.net






ANOVA Model
Response ~ Treatment_A * Treatment_B
means19.4780.6880.487-0.779

\begin{tabular}{lllllllll}
\hline
ANOVA Model \tabularnewline
Response ~ Treatment_A * Treatment_B \tabularnewline
means & 19.478 & 0.688 & 0.487 & -0.779 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270836&T=1

[TABLE]
[ROW][C]ANOVA Model[/C][/ROW]
[ROW][C]Response ~ Treatment_A * Treatment_B[/C][/ROW]
[ROW][C]means[/C][C]19.478[/C][C]0.688[/C][C]0.487[/C][C]-0.779[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270836&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270836&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:

ANOVA Model
Response ~ Treatment_A * Treatment_B
means19.4780.6880.487-0.779






ANOVA Statistics
DfSum SqMean SqF valuePr(>F)
1
Treatment_A11.5761.5760.1040.747
Treatment_B10.1260.1260.0080.927
Treatment_A:Treatment_B14.1954.1950.2770.6
Residuals1121694.41315.129 

\begin{tabular}{lllllllll}
\hline
ANOVA Statistics \tabularnewline
  & Df & Sum Sq & Mean Sq & F value & Pr(>F) \tabularnewline
 & 1 &  &  &  &  \tabularnewline
Treatment_A & 1 & 1.576 & 1.576 & 0.104 & 0.747 \tabularnewline
Treatment_B & 1 & 0.126 & 0.126 & 0.008 & 0.927 \tabularnewline
Treatment_A:Treatment_B & 1 & 4.195 & 4.195 & 0.277 & 0.6 \tabularnewline
Residuals & 112 & 1694.413 & 15.129 &   &   \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270836&T=2

[TABLE]
[ROW][C]ANOVA Statistics[/C][/ROW]
[ROW][C] [/C][C]Df[/C][C]Sum Sq[/C][C]Mean Sq[/C][C]F value[/C][C]Pr(>F)[/C][/ROW]
[ROW][C][/C][C]1[/C][C][/C][C][/C][C][/C][C][/C][/ROW]
[ROW][C]Treatment_A[/C][C]1[/C][C]1.576[/C][C]1.576[/C][C]0.104[/C][C]0.747[/C][/ROW]
[ROW][C]Treatment_B[/C][C]1[/C][C]0.126[/C][C]0.126[/C][C]0.008[/C][C]0.927[/C][/ROW]
[ROW][C]Treatment_A:Treatment_B[/C][C]1[/C][C]4.195[/C][C]4.195[/C][C]0.277[/C][C]0.6[/C][/ROW]
[ROW][C]Residuals[/C][C]112[/C][C]1694.413[/C][C]15.129[/C][C] [/C][C] [/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270836&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270836&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:

ANOVA Statistics
DfSum SqMean SqF valuePr(>F)
1
Treatment_A11.5761.5760.1040.747
Treatment_B10.1260.1260.0080.927
Treatment_A:Treatment_B14.1954.1950.2770.6
Residuals1121694.41315.129






Tukey Honest Significant Difference Comparisons
difflwruprp adj
1-00.234-1.2041.6730.747
1-00.067-1.391.5250.928
1:0-0:00.688-2.2723.6480.93
0:1-0:00.487-2.3453.320.97
1:1-0:00.397-2.2583.0510.98
0:1-1:0-0.201-32.5980.998
1:1-1:0-0.292-2.9112.3280.991
1:1-0:1-0.091-2.5652.3841

\begin{tabular}{lllllllll}
\hline
Tukey Honest Significant Difference Comparisons \tabularnewline
  & diff & lwr & upr & p adj \tabularnewline
1-0 & 0.234 & -1.204 & 1.673 & 0.747 \tabularnewline
1-0 & 0.067 & -1.39 & 1.525 & 0.928 \tabularnewline
1:0-0:0 & 0.688 & -2.272 & 3.648 & 0.93 \tabularnewline
0:1-0:0 & 0.487 & -2.345 & 3.32 & 0.97 \tabularnewline
1:1-0:0 & 0.397 & -2.258 & 3.051 & 0.98 \tabularnewline
0:1-1:0 & -0.201 & -3 & 2.598 & 0.998 \tabularnewline
1:1-1:0 & -0.292 & -2.911 & 2.328 & 0.991 \tabularnewline
1:1-0:1 & -0.091 & -2.565 & 2.384 & 1 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270836&T=3

[TABLE]
[ROW][C]Tukey Honest Significant Difference Comparisons[/C][/ROW]
[ROW][C] [/C][C]diff[/C][C]lwr[/C][C]upr[/C][C]p adj[/C][/ROW]
[ROW][C]1-0[/C][C]0.234[/C][C]-1.204[/C][C]1.673[/C][C]0.747[/C][/ROW]
[ROW][C]1-0[/C][C]0.067[/C][C]-1.39[/C][C]1.525[/C][C]0.928[/C][/ROW]
[ROW][C]1:0-0:0[/C][C]0.688[/C][C]-2.272[/C][C]3.648[/C][C]0.93[/C][/ROW]
[ROW][C]0:1-0:0[/C][C]0.487[/C][C]-2.345[/C][C]3.32[/C][C]0.97[/C][/ROW]
[ROW][C]1:1-0:0[/C][C]0.397[/C][C]-2.258[/C][C]3.051[/C][C]0.98[/C][/ROW]
[ROW][C]0:1-1:0[/C][C]-0.201[/C][C]-3[/C][C]2.598[/C][C]0.998[/C][/ROW]
[ROW][C]1:1-1:0[/C][C]-0.292[/C][C]-2.911[/C][C]2.328[/C][C]0.991[/C][/ROW]
[ROW][C]1:1-0:1[/C][C]-0.091[/C][C]-2.565[/C][C]2.384[/C][C]1[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270836&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270836&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:

Tukey Honest Significant Difference Comparisons
difflwruprp adj
1-00.234-1.2041.6730.747
1-00.067-1.391.5250.928
1:0-0:00.688-2.2723.6480.93
0:1-0:00.487-2.3453.320.97
1:1-0:00.397-2.2583.0510.98
0:1-1:0-0.201-32.5980.998
1:1-1:0-0.292-2.9112.3280.991
1:1-0:1-0.091-2.5652.3841






Levenes Test for Homogeneity of Variance
DfF valuePr(>F)
Group30.6950.557
112 

\begin{tabular}{lllllllll}
\hline
Levenes Test for Homogeneity of Variance \tabularnewline
  & Df & F value & Pr(>F) \tabularnewline
Group & 3 & 0.695 & 0.557 \tabularnewline
  & 112 &   &   \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=270836&T=4

[TABLE]
[ROW][C]Levenes Test for Homogeneity of Variance[/C][/ROW]
[ROW][C] [/C][C]Df[/C][C]F value[/C][C]Pr(>F)[/C][/ROW]
[ROW][C]Group[/C][C]3[/C][C]0.695[/C][C]0.557[/C][/ROW]
[ROW][C] [/C][C]112[/C][C] [/C][C] [/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=270836&T=4

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=270836&T=4

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


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

Levenes Test for Homogeneity of Variance
DfF valuePr(>F)
Group30.6950.557
112


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = 1 ; par2 = 2 ; par3 = 3 ; par4 = TRUE ;
Parameters (R input):
par1 = 1 ; par2 = 2 ; par3 = 3 ; par4 = TRUE ;
R code (references can be found in the software module):
cat1 <- as.numeric(par1) #
cat2<- as.numeric(par2) #
cat3 <- as.numeric(par3)
intercept<-as.logical(par4)
x <- t(x)
x1<-as.numeric(x[,cat1])
f1<-as.character(x[,cat2])
f2 <- as.character(x[,cat3])
xdf<-data.frame(x1,f1, f2)
(V1<-dimnames(y)[[1]][cat1])
(V2<-dimnames(y)[[1]][cat2])
(V3 <-dimnames(y)[[1]][cat3])
names(xdf)<-c('Response', 'Treatment_A', 'Treatment_B')
if(intercept == FALSE) (lmxdf<-lm(Response ~ Treatment_A * Treatment_B- 1, data = xdf) ) else (lmxdf<-lm(Response ~ Treatment_A * Treatment_B, data = xdf) )
(aov.xdf<-aov(lmxdf) )
(anova.xdf<-anova(lmxdf) )
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'ANOVA Model', length(lmxdf$coefficients)+1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a, lmxdf$call['formula'],length(lmxdf$coefficients)+1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a, 'means',,TRUE)
for(i in 1:length(lmxdf$coefficients)){
a<-table.element(a, round(lmxdf$coefficients[i], digits=3),,FALSE)
}
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable.tab')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'ANOVA Statistics', 5+1,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a, ' ',,TRUE)
a<-table.element(a, 'Df',,FALSE)
a<-table.element(a, 'Sum Sq',,FALSE)
a<-table.element(a, 'Mean Sq',,FALSE)
a<-table.element(a, 'F value',,FALSE)
a<-table.element(a, 'Pr(>F)',,FALSE)
a<-table.row.end(a)
for(i in 1 : length(rownames(anova.xdf))-1){
a<-table.row.start(a)
a<-table.element(a,rownames(anova.xdf)[i] ,,TRUE)
a<-table.element(a, anova.xdf$Df[1],,FALSE)
a<-table.element(a, round(anova.xdf$'Sum Sq'[i], digits=3),,FALSE)
a<-table.element(a, round(anova.xdf$'Mean Sq'[i], digits=3),,FALSE)
a<-table.element(a, round(anova.xdf$'F value'[i], digits=3),,FALSE)
a<-table.element(a, round(anova.xdf$'Pr(>F)'[i], digits=3),,FALSE)
a<-table.row.end(a)
}
a<-table.row.start(a)
a<-table.element(a, 'Residuals',,TRUE)
a<-table.element(a, anova.xdf$'Df'[i+1],,FALSE)
a<-table.element(a, round(anova.xdf$'Sum Sq'[i+1], digits=3),,FALSE)
a<-table.element(a, round(anova.xdf$'Mean Sq'[i+1], digits=3),,FALSE)
a<-table.element(a, ' ',,FALSE)
a<-table.element(a, ' ',,FALSE)
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable1.tab')
bitmap(file='anovaplot.png')
boxplot(Response ~ Treatment_A + Treatment_B, data=xdf, xlab=V2, ylab=V1, main='Boxplots of ANOVA Groups')
dev.off()
bitmap(file='designplot.png')
xdf2 <- xdf # to preserve xdf make copy for function
names(xdf2) <- c(V1, V2, V3)
plot.design(xdf2, main='Design Plot of Group Means')
dev.off()
bitmap(file='interactionplot.png')
interaction.plot(xdf$Treatment_A, xdf$Treatment_B, xdf$Response, xlab=V2, ylab=V1, trace.label=V3, main='Possible Interactions Between Anova Groups')
dev.off()
if(intercept==TRUE){
thsd<-TukeyHSD(aov.xdf)
names(thsd) <- c(V2, V3, paste(V2, ':', V3, sep=''))
bitmap(file='TukeyHSDPlot.png')
layout(matrix(c(1,2,3,3), 2,2))
plot(thsd, las=1)
dev.off()
}
if(intercept==TRUE){
ntables<-length(names(thsd))
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Tukey Honest Significant Difference Comparisons', 5,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a, ' ', 1, TRUE)
for(i in 1:4){
a<-table.element(a,colnames(thsd[[1]])[i], 1, TRUE)
}
a<-table.row.end(a)
for(nt in 1:ntables){
for(i in 1:length(rownames(thsd[[nt]]))){
a<-table.row.start(a)
a<-table.element(a,rownames(thsd[[nt]])[i], 1, TRUE)
for(j in 1:4){
a<-table.element(a,round(thsd[[nt]][i,j], digits=3), 1, FALSE)
}
a<-table.row.end(a)
}
} # end nt
a<-table.end(a)
table.save(a,file='hsdtable.tab')
}#end if hsd tables
if(intercept==FALSE){
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'TukeyHSD Message', 1,TRUE)
a<-table.row.end(a)
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Must Include Intercept to use Tukey Test ', 1, FALSE)
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable2.tab')
}
library(car)
lt.lmxdf<-levene.test(lmxdf)
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Levenes Test for Homogeneity of Variance', 4,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,' ', 1, TRUE)
for (i in 1:3){
a<-table.element(a,names(lt.lmxdf)[i], 1, FALSE)
}
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Group', 1, TRUE)
for (i in 1:3){
a<-table.element(a,round(lt.lmxdf[[i]][1], digits=3), 1, FALSE)
}
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,' ', 1, TRUE)
a<-table.element(a,lt.lmxdf[[1]][2], 1, FALSE)
a<-table.element(a,' ', 1, FALSE)
a<-table.element(a,' ', 1, FALSE)
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable3.tab')