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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_smp.wasp
Title produced by softwareStandard Deviation-Mean Plot
Date of computationFri, 04 Dec 2009 03:44:58 -0700
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2009/Dec/04/t1259923585g2sae3ldlsot7qj.htm/, Retrieved Sun, 28 Apr 2024 17:32:00 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=63269, Retrieved Sun, 28 Apr 2024 17:32:00 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact105

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Univariate Explorative Data Analysis] [Run Sequence gebo...] [2008-12-12 13:32:37] [76963dc1903f0f612b6153510a3818cf]
- R  D  [Univariate Explorative Data Analysis] [Run Sequence gebo...] [2008-12-17 12:14:40] [76963dc1903f0f612b6153510a3818cf]
-         [Univariate Explorative Data Analysis] [Run Sequence Plot...] [2008-12-22 18:19:51] [1ce0d16c8f4225c977b42c8fa93bc163]
- RMP       [Standard Deviation-Mean Plot] [Identifying Integ...] [2009-11-22 12:50:05] [b98453cac15ba1066b407e146608df68]
-    D        [Standard Deviation-Mean Plot] [ws8 method 4 link 1] [2009-11-25 17:28:46] [616e2df490b611f6cb7080068870ecbd]
-    D            [Standard Deviation-Mean Plot] [Workshop 9] [2009-12-04 10:44:58] [ee8fc1691ecec7724e0ca78f0c288737] [Current]
-    D              [Standard Deviation-Mean Plot] [WS9] [2009-12-11 11:36:09] [4fe1472705bb0a32f118ba3ca90ffa8e]
-    D              [Standard Deviation-Mean Plot] [WS9] [2009-12-11 12:01:55] [4fe1472705bb0a32f118ba3ca90ffa8e]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
130
136.7
138.1
139.5
140.4
144.6
151.4
147.9
141.5
143.8
143.6
150.5
150.1
154.9
162.1
176.7
186.6
194.8
196.3
228.8
267.2
237.2
254.7
258.2
257.9
269.6
266.9
269.6
253.9
258.6
274.2
301.5
304.5
285.1
287.7
265.5
264.1
276.1
258.9
239.1
250.1
276.8
297.6
295.4
283
275.8
279.7
254.6
234.6
176.9
148.1
122.7
124.9
121.6
128.4
144.5
151.8
167.1
173.8
203.7
199.8

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'Gwilym Jenkins' @ 72.249.127.135

\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 & 'Gwilym Jenkins' @ 72.249.127.135 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=63269&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]'Gwilym Jenkins' @ 72.249.127.135[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=63269&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=63269&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'Gwilym Jenkins' @ 72.249.127.135






Standard Deviation-Mean Plot
SectionMeanStandard DeviationRange
1142.3333333333336.0528480649170221.4
2205.63333333333342.0511016682697117.1
3274.58333333333316.665469653984550.6
4270.93333333333317.895267700166058.5
5158.17535.0413554376695113

\begin{tabular}{lllllllll}
\hline
Standard Deviation-Mean Plot \tabularnewline
Section & Mean & Standard Deviation & Range \tabularnewline
1 & 142.333333333333 & 6.05284806491702 & 21.4 \tabularnewline
2 & 205.633333333333 & 42.0511016682697 & 117.1 \tabularnewline
3 & 274.583333333333 & 16.6654696539845 & 50.6 \tabularnewline
4 & 270.933333333333 & 17.8952677001660 & 58.5 \tabularnewline
5 & 158.175 & 35.0413554376695 & 113 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=63269&T=1

[TABLE]
[ROW][C]Standard Deviation-Mean Plot[/C][/ROW]
[ROW][C]Section[/C][C]Mean[/C][C]Standard Deviation[/C][C]Range[/C][/ROW]
[ROW][C]1[/C][C]142.333333333333[/C][C]6.05284806491702[/C][C]21.4[/C][/ROW]
[ROW][C]2[/C][C]205.633333333333[/C][C]42.0511016682697[/C][C]117.1[/C][/ROW]
[ROW][C]3[/C][C]274.583333333333[/C][C]16.6654696539845[/C][C]50.6[/C][/ROW]
[ROW][C]4[/C][C]270.933333333333[/C][C]17.8952677001660[/C][C]58.5[/C][/ROW]
[ROW][C]5[/C][C]158.175[/C][C]35.0413554376695[/C][C]113[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=63269&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=63269&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:

Standard Deviation-Mean Plot
SectionMeanStandard DeviationRange
1142.3333333333336.0528480649170221.4
2205.63333333333342.0511016682697117.1
3274.58333333333316.665469653984550.6
4270.93333333333317.895267700166058.5
5158.17535.0413554376695113






Regression: S.E.(k) = alpha + beta * Mean(k)
alpha27.4453403393799
beta-0.0185617881332432
S.D.0.137050567991883
T-STAT-0.135437513358883
p-value0.900842799184454

\begin{tabular}{lllllllll}
\hline
Regression: S.E.(k) = alpha + beta * Mean(k) \tabularnewline
alpha & 27.4453403393799 \tabularnewline
beta & -0.0185617881332432 \tabularnewline
S.D. & 0.137050567991883 \tabularnewline
T-STAT & -0.135437513358883 \tabularnewline
p-value & 0.900842799184454 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=63269&T=2

[TABLE]
[ROW][C]Regression: S.E.(k) = alpha + beta * Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]27.4453403393799[/C][/ROW]
[ROW][C]beta[/C][C]-0.0185617881332432[/C][/ROW]
[ROW][C]S.D.[/C][C]0.137050567991883[/C][/ROW]
[ROW][C]T-STAT[/C][C]-0.135437513358883[/C][/ROW]
[ROW][C]p-value[/C][C]0.900842799184454[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=63269&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=63269&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:

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha27.4453403393799
beta-0.0185617881332432
S.D.0.137050567991883
T-STAT-0.135437513358883
p-value0.900842799184454






Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha-0.0673706065978414
beta0.569569622277823
S.D.1.42653875224282
T-STAT0.399266841775128
p-value0.716420997158024
Lambda0.430430377722177

\begin{tabular}{lllllllll}
\hline
Regression: ln S.E.(k) = alpha + beta * ln Mean(k) \tabularnewline
alpha & -0.0673706065978414 \tabularnewline
beta & 0.569569622277823 \tabularnewline
S.D. & 1.42653875224282 \tabularnewline
T-STAT & 0.399266841775128 \tabularnewline
p-value & 0.716420997158024 \tabularnewline
Lambda & 0.430430377722177 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=63269&T=3

[TABLE]
[ROW][C]Regression: ln S.E.(k) = alpha + beta * ln Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]-0.0673706065978414[/C][/ROW]
[ROW][C]beta[/C][C]0.569569622277823[/C][/ROW]
[ROW][C]S.D.[/C][C]1.42653875224282[/C][/ROW]
[ROW][C]T-STAT[/C][C]0.399266841775128[/C][/ROW]
[ROW][C]p-value[/C][C]0.716420997158024[/C][/ROW]
[ROW][C]Lambda[/C][C]0.430430377722177[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=63269&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=63269&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:

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha-0.0673706065978414
beta0.569569622277823
S.D.1.42653875224282
T-STAT0.399266841775128
p-value0.716420997158024
Lambda0.430430377722177


Figures (Output of Computation)

Input Parameters & R Code

Parameters (Session):
par1 = 12 ;
Parameters (R input):
par1 = 12 ;
R code (references can be found in the software module):
par1 <- as.numeric(par1)
(n <- length(x))
(np <- floor(n / par1))
arr <- array(NA,dim=c(par1,np))
j <- 0
k <- 1
for (i in 1:(np*par1))
{
j = j + 1
arr[j,k] <- x[i]
if (j == par1) {
j = 0
k=k+1
}
}
arr
arr.mean <- array(NA,dim=np)
arr.sd <- array(NA,dim=np)
arr.range <- array(NA,dim=np)
for (j in 1:np)
{
arr.mean[j] <- mean(arr[,j],na.rm=TRUE)
arr.sd[j] <- sd(arr[,j],na.rm=TRUE)
arr.range[j] <- max(arr[,j],na.rm=TRUE) - min(arr[,j],na.rm=TRUE)
}
arr.mean
arr.sd
arr.range
(lm1 <- lm(arr.sd~arr.mean))
(lnlm1 <- lm(log(arr.sd)~log(arr.mean)))
(lm2 <- lm(arr.range~arr.mean))
bitmap(file='test1.png')
plot(arr.mean,arr.sd,main='Standard Deviation-Mean Plot',xlab='mean',ylab='standard deviation')
dev.off()
bitmap(file='test2.png')
plot(arr.mean,arr.range,main='Range-Mean Plot',xlab='mean',ylab='range')
dev.off()
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Standard Deviation-Mean Plot',4,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Section',header=TRUE)
a<-table.element(a,'Mean',header=TRUE)
a<-table.element(a,'Standard Deviation',header=TRUE)
a<-table.element(a,'Range',header=TRUE)
a<-table.row.end(a)
for (j in 1:np) {
a<-table.row.start(a)
a<-table.element(a,j,header=TRUE)
a<-table.element(a,arr.mean[j])
a<-table.element(a,arr.sd[j] )
a<-table.element(a,arr.range[j] )
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,'Regression: S.E.(k) = alpha + beta * Mean(k)',2,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'alpha',header=TRUE)
a<-table.element(a,lm1$coefficients[[1]])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'beta',header=TRUE)
a<-table.element(a,lm1$coefficients[[2]])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'S.D.',header=TRUE)
a<-table.element(a,summary(lm1)$coefficients[2,2])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'T-STAT',header=TRUE)
a<-table.element(a,summary(lm1)$coefficients[2,3])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'p-value',header=TRUE)
a<-table.element(a,summary(lm1)$coefficients[2,4])
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable1.tab')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Regression: ln S.E.(k) = alpha + beta * ln Mean(k)',2,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'alpha',header=TRUE)
a<-table.element(a,lnlm1$coefficients[[1]])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'beta',header=TRUE)
a<-table.element(a,lnlm1$coefficients[[2]])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'S.D.',header=TRUE)
a<-table.element(a,summary(lnlm1)$coefficients[2,2])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'T-STAT',header=TRUE)
a<-table.element(a,summary(lnlm1)$coefficients[2,3])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'p-value',header=TRUE)
a<-table.element(a,summary(lnlm1)$coefficients[2,4])
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Lambda',header=TRUE)
a<-table.element(a,1-lnlm1$coefficients[[2]])
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable2.tab')