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Author's title

Author

*Unverified author*

R Software Module

Ian.Hollidayrwasp_Tests to Compare Two Means.wasp

Title produced by software

Aston University Statistical Software

Date of computation

Wed, 11 Nov 2009 11:51:00 +0100

Cite this page as follows

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2009/Nov/11/t1257943216pvan0zqa1smvd2s.htm/, Retrieved Thu, 18 Apr 2024 23:31:54 +0000

Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=55537, Retrieved Thu, 18 Apr 2024 23:31:54 +0000

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Original text written by user:

IsPrivate?

No (this computation is public)

User-defined keywords

PY2236 Aston University Language and Communication Module

Estimated Impact

237

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)

-     [Aston University Statistical Software] [Test of Two Means] [2009-11-10 17:16:17] [98fd0e87c3eb04e0cc2efde01dbafab6]
- R P   [Aston University Statistical Software] [Compare Two Means] [2009-11-11 08:09:40] [74be16979710d4c4e7c6647856088456]
-           [Aston University Statistical Software] [PY2236 Week 6 Dat...] [2009-11-11 10:51:00] [d41d8cd98f00b204e9800998ecf8427e] [Current]

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Dataseries X:

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Histogram

Boxplots

70.8	66.67
69.6	66.33
69.87	64.33
67.47	64
67.6	63.33
67.13	61.33
66.27	64.67
66.73	63
68.07	60.67
67.8	63.67
64.8	60.67
64.6	61.67
64.2	62.33
64.2	60.33
63.67	59.67
61	60.33
59.67	59.33
59.67	58.67
59.8	58.67
60.73	59.33
59.4	57.33
58.07	59.33
57.47	56
70.73	53.67
72.87	58.67
66	49.33
66.07	71.33
66	70.33
66.27	69
64	66
63.67	66
63.73	63.33
63.33	65.33
63.53	64.33
63.53	64
62.87	61.67
59.53	63.67
62.8	64.67
60.8	61.67
59.8	62
56.67	61.33
57.67	63.67
58.4	61.33
55.47	62.33
56.2	59.67
71.53	59.33
68.67	61.67
65.67	58.67
66.73	58
67.33	56.67
66.73	59.67
66.87	58
65.8	57
64.73	57.67
65.47	58.67
63.6	55.33
64.07	56
64.67	55.67
63.73	53.33
62.53	53.67
61.93	51
62.67	47
62.8	4.33
61.33	70
62.6	68.67
59.13	67.67
61.27	66
59.47	65.67
57.87	65.67
59.73	63.67
61.4	63.67
58.8	64
58.33	62
57.47	62
57.13	61.67
55	61.67
51.53	63.33
72.73	61
73	62.33
70.8	60.33
70.07	60.33
71.67	60.67
71.07	57.67
70.67	58.33
70.73	58
70.73	57.33
68.6	56.67
69.6	58
66.47	55.33
67.07	55.67
68.67	54.67
66.93	56.33
65.93	55
68.87	55
66.53	54.67
65.8	54.33
66.6	49
66	48.33
65	49.67
66.8	43.67
65.6	6.33
66	3
65.67	66.67
64.67	67.33
65.07	65.33
64.67	66
65.07	65.67
65.2	66.67
64.87	65.67
63.47	65
62.6	64.67
64.07	66.67
63.73	63.67
64.67	63.33
61.6	63.67
61.6	63.33
60.47	63.67
61.27	63
63	61.67
61.47	61.33
60.87	60.67
61.67	60
62.87	61.67
62.4	61.33
59.73	58.67
60.13	60.33
58.8	59.67
59.6	59.33
58.93	59.67
60.13	61
58.2	61
58.27	60
58.27	60
55.07	58.67
53.87	58.33
52.33	58
47.2	56.33
37.93	54.67
72.73	55.33
70.07	54
70.67	52.67
72.07	44
68.8	65.67
68.8	65
67.47	66.33
66.73	64
66.53	62.33
66	61.33
67.6	63
66	63.67
66	62
66.53	61.33
65.8	64.67
64.27	62.67
64.67	64
64.6	61
64.13	60.67
65.47	59.67
62.93	60.33
63.53	56.67
62.13	56.67
63.87	54.33
64.67	51
63.33	51
63.13	47
62.8	68
62.4	65
62.4	64
62.6	64
61.47	64
62.2	62
63	61
61.8	60
59.73	60
60.33	62
60.13	60
59.53	59
59	61
55.93	60
41.87	60
36.33	58
71.67	58
71.47	60
70.47	58
69.53	59
70.73	56
69.93	54
68.73	51
67.53	47

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 seconds
R Server	'George Udny Yule' @ 72.249.76.132

\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 & 'George Udny Yule' @ 72.249.76.132 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=55537&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]'George Udny Yule' @ 72.249.76.132[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=55537&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=55537&T=0

As an alternative you can also use a QR Code:

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

Summary of computational transaction
Raw Input	view raw input (R code)
Raw Output	view raw output of R engine
Computing time	2 seconds
R Server	'George Udny Yule' @ 72.249.76.132

Students T-Test
	Statistic	P-value
Students T-Test	5.60536	0

\begin{tabular}{lllllllll}
\hline
Students T-Test \tabularnewline
 & Statistic & P-value \tabularnewline
Students T-Test & 5.60536 & 0 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=55537&T=1

[TABLE]
[ROW][C]Students T-Test[/C][/ROW]
[ROW][C][/C][C]Statistic[/C][C]P-value[/C][/ROW]
[ROW][C]Students T-Test[/C][C]5.60536[/C][C]0[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=55537&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=55537&T=1

As an alternative you can also use a QR Code:

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

Students T-Test
	Statistic	P-value
Students T-Test	5.60536	0

Figure 1

PNG link

Postscript link

PDF link

Parameters (Session):

par1 = two.sided ; par2 = 1 ; par3 = 2 ; par4 = Students T-Test ; par5 = paired ; par6 = 0.0 ;

Parameters (R input):

par1 = two.sided ; par2 = 1 ; par3 = 2 ; par4 = Students T-Test ; par5 = paired ; par6 = 0.0 ; par7 = ; par8 = ; par9 = ; par10 = ; par11 = ; par12 = ; par13 = ; par14 = ; par15 = ; par16 = ; par17 = ; par18 = ; par19 = ; par20 = ;

R code (references can be found in the software module):

par2 <- as.numeric(par2)
par3 <- as.numeric(par3)
par4 <- as.character(par4)
par5 <- as.character(par5)
par6 <- as.numeric(par6)
if ( par5 == 'unpaired') paired <- FALSE else paired <- TRUE
x <- t(y)
bitmap(file='test1.png')
(r<-boxplot(x ,xlab=xlab,ylab=ylab,main=main,notch=FALSE,col=2))
dev.off()
load(file='createtable')
if( par4 == 'Wilcoxon-Mann_Whitney'){
a<-table.start()
a <- table.row.start(a)
a <- table.element(a,'Wilcoxon Test',3,TRUE)
a <- table.row.end(a)
a <- table.row.start(a)
a <- table.element(a,'',1,TRUE)
a <- table.element(a,'Statistic',1,TRUE)
a <- table.element(a,'P-value',1,TRUE)
a <- table.row.end(a)
W <- wilcox.test(x[,par2],x[,par3],alternative=par1, paired = paired)
a<-table.row.start(a)
a<-table.element(a,'Wilcoxon Test',1,TRUE)
a<-table.element(a,W$statistic[[1]])
a<-table.element(a,round(W$p.value, digits=5) )
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable.tab')
}
if( par4 == 'Students T-Test')
{
a<-table.start()
a <- table.row.start(a)
a <- table.element(a,'Students T-Test',3,TRUE)
a <- table.row.end(a)
a <- table.row.start(a)
a <- table.element(a,'',1,TRUE)
a <- table.element(a,'Statistic',1,TRUE)
a <- table.element(a,'P-value',1,TRUE)
a <- table.row.end(a)
T <- t.test(x[,par2],x[,par3],alternative=par1, paired=paired, mu=par6)
a<-table.row.start(a)
a<-table.element(a,'Students T-Test',1,TRUE)
a<-table.element(a,round(T$statistic[[1]], digits=5) )
a<-table.element(a,round(T$p.value, digits=5) )
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable.tab')
}

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Dataset

Tables (Output of Computation)

Figures (Output of Computation)

Input Parameters & R Code