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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 computationSun, 20 Dec 2009 00:53:34 -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/20/t1261295684zkxxvz2ifi4cuyg.htm/, Retrieved Sat, 27 Apr 2024 09:00:57 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=69791, Retrieved Sat, 27 Apr 2024 09:00:57 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact179

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] [Paper: Differenti...] [2009-12-20 07:53:34] [762da55b2e2304daaed24a7cc507d14d] [Current]
-    D    [Standard Deviation-Mean Plot] [Paper Differentia...] [2009-12-20 08:38:06] [1d635fe1113b56bab3f378c464a289bc]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
122.2
122.6
122.2
118.8
119
118.2
117.8
116.8
114.6
113.4
113.8
124.2
125.8
125.6
122.4
119
119.4
118.6
118
116
114.8
114.6
114.6
124
125.2
124
117.6
113.2
111.4
112.2
109.8
106.4
105.2
102.2
99.8
111
113
108.4
105.4
102
102.8
103.4
101.6
98.6
98
93.8
95.6
105.6
106.8
103.6
101.2
100.4
103.2
105.6
106.6
107.2
107.4
104.8
107.2
117.4

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=69791&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=69791&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=69791&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
1118.6333333333333.6129397079571310.8
2119.44.1682784761272211.2
3111.57.8437004254137825.4
4102.355.4232663757018419.2
5105.954.3208795400936617

\begin{tabular}{lllllllll}
\hline
Standard Deviation-Mean Plot \tabularnewline
Section & Mean & Standard Deviation & Range \tabularnewline
1 & 118.633333333333 & 3.61293970795713 & 10.8 \tabularnewline
2 & 119.4 & 4.16827847612722 & 11.2 \tabularnewline
3 & 111.5 & 7.84370042541378 & 25.4 \tabularnewline
4 & 102.35 & 5.42326637570184 & 19.2 \tabularnewline
5 & 105.95 & 4.32087954009366 & 17 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=69791&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]118.633333333333[/C][C]3.61293970795713[/C][C]10.8[/C][/ROW]
[ROW][C]2[/C][C]119.4[/C][C]4.16827847612722[/C][C]11.2[/C][/ROW]
[ROW][C]3[/C][C]111.5[/C][C]7.84370042541378[/C][C]25.4[/C][/ROW]
[ROW][C]4[/C][C]102.35[/C][C]5.42326637570184[/C][C]19.2[/C][/ROW]
[ROW][C]5[/C][C]105.95[/C][C]4.32087954009366[/C][C]17[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=69791&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=69791&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
1118.6333333333333.6129397079571310.8
2119.44.1682784761272211.2
3111.57.8437004254137825.4
4102.355.4232663757018419.2
5105.954.3208795400936617






Regression: S.E.(k) = alpha + beta * Mean(k)
alpha13.2006163349453
beta-0.0728425763061244
S.D.0.121610427235415
T-STAT-0.598982981657609
p-value0.591397418959927

\begin{tabular}{lllllllll}
\hline
Regression: S.E.(k) = alpha + beta * Mean(k) \tabularnewline
alpha & 13.2006163349453 \tabularnewline
beta & -0.0728425763061244 \tabularnewline
S.D. & 0.121610427235415 \tabularnewline
T-STAT & -0.598982981657609 \tabularnewline
p-value & 0.591397418959927 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=69791&T=2

[TABLE]
[ROW][C]Regression: S.E.(k) = alpha + beta * Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]13.2006163349453[/C][/ROW]
[ROW][C]beta[/C][C]-0.0728425763061244[/C][/ROW]
[ROW][C]S.D.[/C][C]0.121610427235415[/C][/ROW]
[ROW][C]T-STAT[/C][C]-0.598982981657609[/C][/ROW]
[ROW][C]p-value[/C][C]0.591397418959927[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=69791&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=69791&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)
alpha13.2006163349453
beta-0.0728425763061244
S.D.0.121610427235415
T-STAT-0.598982981657609
p-value0.591397418959927






Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha9.81958526559774
beta-1.74724987902328
S.D.2.36586256056287
T-STAT-0.738525520522034
p-value0.513725040665512
Lambda2.74724987902328

\begin{tabular}{lllllllll}
\hline
Regression: ln S.E.(k) = alpha + beta * ln Mean(k) \tabularnewline
alpha & 9.81958526559774 \tabularnewline
beta & -1.74724987902328 \tabularnewline
S.D. & 2.36586256056287 \tabularnewline
T-STAT & -0.738525520522034 \tabularnewline
p-value & 0.513725040665512 \tabularnewline
Lambda & 2.74724987902328 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=69791&T=3

[TABLE]
[ROW][C]Regression: ln S.E.(k) = alpha + beta * ln Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]9.81958526559774[/C][/ROW]
[ROW][C]beta[/C][C]-1.74724987902328[/C][/ROW]
[ROW][C]S.D.[/C][C]2.36586256056287[/C][/ROW]
[ROW][C]T-STAT[/C][C]-0.738525520522034[/C][/ROW]
[ROW][C]p-value[/C][C]0.513725040665512[/C][/ROW]
[ROW][C]Lambda[/C][C]2.74724987902328[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=69791&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=69791&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)
alpha9.81958526559774
beta-1.74724987902328
S.D.2.36586256056287
T-STAT-0.738525520522034
p-value0.513725040665512
Lambda2.74724987902328


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')