FreeStatistics.org

Free Statistics

of Irreproducible Research!

Description of Statistical Computation

Author's title

Author*Unverified author*
R Software Modulerwasp_smp.wasp
Title produced by softwareStandard Deviation-Mean Plot
Date of computationMon, 26 Nov 2007 14:55:30 -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/2007/Nov/26/t11961135564x4qlhamhbdnk1p.htm/, Retrieved Thu, 02 May 2024 14:05:14 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=6728, Retrieved Thu, 02 May 2024 14:05:14 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact165

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Standard Deviation-Mean Plot] [Inducing Stationa...] [2007-11-26 21:55:30] [640491d00f3c9cca22cbf779aa38ac16] [Current]
Feedback Forum

Post a new message

Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
99,20
98,10
96,10
95,50
95,70
95,90
96,20
95,70
93,40
93,40
91,90
92,80
93,20
93,80
93,80
85,10
86,10
86,50
90,00
89,10
88,40
91,40
88,00
87,80
87,40
86,20
87,80
84,60
85,00
85,70
83,90
83,60
82,60
84,90
84,20
83,80
84,20
84,40
86,00
89,70
93,90
98,40
98,30
99,30
100,50
96,90
97,50
97,50
98,90
99,30
100,60
99,90
98,80
98,60
98,20
96,30
103,40
102,70
102,70
102,60
101,60
100,90
101,10
105,60
104,70
103,80
105,40
105,60
109,20
109,50
110,10
110,00
110,30
109,30
110,20
113,00
113,60
111,20
111,30
115,00

Tables (Output of Computation)





Summary of compuational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R Server'Gwilym Jenkins' @ 72.249.127.135

\begin{tabular}{lllllllll}
\hline
Summary of compuational 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 & 'Gwilym Jenkins' @ 72.249.127.135 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=6728&T=0

[TABLE]
[ROW][C]Summary of compuational 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]'Gwilym Jenkins' @ 72.249.127.135[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=6728&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=6728&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 compuational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R Server'Gwilym Jenkins' @ 72.249.127.135






Standard Deviation-Mean Plot
SectionMeanStandard DeviationRange
195.3252.1371710273162515
289.43333333333333.028751117760159.4
384.9751.558043645088291.80000000000000
493.88333333333336.1173127393909815.9
5100.1666666666672.2353902784457418.4
6105.6253.4404346976931424.4

\begin{tabular}{lllllllll}
\hline
Standard Deviation-Mean Plot \tabularnewline
Section & Mean & Standard Deviation & Range \tabularnewline
1 & 95.325 & 2.13717102731625 & 15 \tabularnewline
2 & 89.4333333333333 & 3.02875111776015 & 9.4 \tabularnewline
3 & 84.975 & 1.55804364508829 & 1.80000000000000 \tabularnewline
4 & 93.8833333333333 & 6.11731273939098 & 15.9 \tabularnewline
5 & 100.166666666667 & 2.23539027844574 & 18.4 \tabularnewline
6 & 105.625 & 3.44043469769314 & 24.4 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=6728&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]95.325[/C][C]2.13717102731625[/C][C]15[/C][/ROW]
[ROW][C]2[/C][C]89.4333333333333[/C][C]3.02875111776015[/C][C]9.4[/C][/ROW]
[ROW][C]3[/C][C]84.975[/C][C]1.55804364508829[/C][C]1.80000000000000[/C][/ROW]
[ROW][C]4[/C][C]93.8833333333333[/C][C]6.11731273939098[/C][C]15.9[/C][/ROW]
[ROW][C]5[/C][C]100.166666666667[/C][C]2.23539027844574[/C][C]18.4[/C][/ROW]
[ROW][C]6[/C][C]105.625[/C][C]3.44043469769314[/C][C]24.4[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=6728&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=6728&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
195.3252.1371710273162515
289.43333333333333.028751117760159.4
384.9751.558043645088291.80000000000000
493.88333333333336.1173127393909815.9
5100.1666666666672.2353902784457418.4
6105.6253.4404346976931424.4






Regression: S.E.(k) = alpha + beta * Mean(k)
alpha-0.85606125994411
beta0.0415404371181066
S.D.0.108418332048595
T-STAT0.383149568280458
p-value0.721100665555927

\begin{tabular}{lllllllll}
\hline
Regression: S.E.(k) = alpha + beta * Mean(k) \tabularnewline
alpha & -0.85606125994411 \tabularnewline
beta & 0.0415404371181066 \tabularnewline
S.D. & 0.108418332048595 \tabularnewline
T-STAT & 0.383149568280458 \tabularnewline
p-value & 0.721100665555927 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=6728&T=2

[TABLE]
[ROW][C]Regression: S.E.(k) = alpha + beta * Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]-0.85606125994411[/C][/ROW]
[ROW][C]beta[/C][C]0.0415404371181066[/C][/ROW]
[ROW][C]S.D.[/C][C]0.108418332048595[/C][/ROW]
[ROW][C]T-STAT[/C][C]0.383149568280458[/C][/ROW]
[ROW][C]p-value[/C][C]0.721100665555927[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=6728&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=6728&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)
alpha-0.85606125994411
beta0.0415404371181066
S.D.0.108418332048595
T-STAT0.383149568280458
p-value0.721100665555927






Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha-8.06104393734345
beta1.99723874149194
S.D.2.88584455572863
T-STAT0.692081192497795
p-value0.526962810213797
Lambda-0.997238741491937

\begin{tabular}{lllllllll}
\hline
Regression: ln S.E.(k) = alpha + beta * ln Mean(k) \tabularnewline
alpha & -8.06104393734345 \tabularnewline
beta & 1.99723874149194 \tabularnewline
S.D. & 2.88584455572863 \tabularnewline
T-STAT & 0.692081192497795 \tabularnewline
p-value & 0.526962810213797 \tabularnewline
Lambda & -0.997238741491937 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=6728&T=3

[TABLE]
[ROW][C]Regression: ln S.E.(k) = alpha + beta * ln Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]-8.06104393734345[/C][/ROW]
[ROW][C]beta[/C][C]1.99723874149194[/C][/ROW]
[ROW][C]S.D.[/C][C]2.88584455572863[/C][/ROW]
[ROW][C]T-STAT[/C][C]0.692081192497795[/C][/ROW]
[ROW][C]p-value[/C][C]0.526962810213797[/C][/ROW]
[ROW][C]Lambda[/C][C]-0.997238741491937[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=6728&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=6728&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-8.06104393734345
beta1.99723874149194
S.D.2.88584455572863
T-STAT0.692081192497795
p-value0.526962810213797
Lambda-0.997238741491937


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')