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Description of Statistical Computation

Author's title

Author*Unverified author*
R Software Modulerwasp_smp.wasp
Title produced by softwareStandard Deviation-Mean Plot
Date of computationWed, 28 Nov 2007 06:24:21 -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/28/t1196255696vhf8ky3hfv1caac.htm/, Retrieved Thu, 02 May 2024 06:03:35 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=7050, Retrieved Thu, 02 May 2024 06:03:35 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywordsKlaas Van Pelt
Estimated Impact187

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] [SMP 2] [2007-11-28 13:24:21] [6abd901c2e17b7d5559c695bbff3d863] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
124,9
120,4
141,2
95,4
111,4
113,3
78
77,7
110,1
109,6
111
97
90,9
94,7
113,5
107,1
103,7
107,7
75,2
74,1
115,7
116,2
95,4
95,9
89,9
102,4
130,2
98,9
102,1
117,3
87,8
66,6
106,3
104,5
113,1
95,1
96,9
107,1
135,4
120,3
105,5
128,4
78,2
85,8
128,7
131,2
128,9
112,3
115
116
140,2
121,2
104,1
128,8
76,1
86,9
127,6
108
113,5
117,4
102,4
117,9
132
95
120,8
128,9
88,4
81,1
120,7
131
123,6
139
109,6
108
130,3
111,7
105,9
128,7
89,9
101

Tables (Output of Computation)





Summary of compuational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time3 seconds
R Server'Herman Ole Andreas Wold' @ 193.190.124.10:1001

\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 & 3 seconds \tabularnewline
R Server & 'Herman Ole Andreas Wold' @ 193.190.124.10:1001 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=7050&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]3 seconds[/C][/ROW]
[ROW][C]R Server[/C][C]'Herman Ole Andreas Wold' @ 193.190.124.10:1001[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=7050&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=7050&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 time3 seconds
R Server'Herman Ole Andreas Wold' @ 193.190.124.10:1001






Standard Deviation-Mean Plot
SectionMeanStandard DeviationRange
1107.518.320579585909351.3
299.17514.273696406008821.5
3101.18333333333316.033705029396616.7
4113.22518.886701670752440.4
5112.917.708241532738938.1
6115.06666666666718.776645713290331.3

\begin{tabular}{lllllllll}
\hline
Standard Deviation-Mean Plot \tabularnewline
Section & Mean & Standard Deviation & Range \tabularnewline
1 & 107.5 & 18.3205795859093 & 51.3 \tabularnewline
2 & 99.175 & 14.2736964060088 & 21.5 \tabularnewline
3 & 101.183333333333 & 16.0337050293966 & 16.7 \tabularnewline
4 & 113.225 & 18.8867016707524 & 40.4 \tabularnewline
5 & 112.9 & 17.7082415327389 & 38.1 \tabularnewline
6 & 115.066666666667 & 18.7766457132903 & 31.3 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=7050&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]107.5[/C][C]18.3205795859093[/C][C]51.3[/C][/ROW]
[ROW][C]2[/C][C]99.175[/C][C]14.2736964060088[/C][C]21.5[/C][/ROW]
[ROW][C]3[/C][C]101.183333333333[/C][C]16.0337050293966[/C][C]16.7[/C][/ROW]
[ROW][C]4[/C][C]113.225[/C][C]18.8867016707524[/C][C]40.4[/C][/ROW]
[ROW][C]5[/C][C]112.9[/C][C]17.7082415327389[/C][C]38.1[/C][/ROW]
[ROW][C]6[/C][C]115.066666666667[/C][C]18.7766457132903[/C][C]31.3[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=7050&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=7050&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
1107.518.320579585909351.3
299.17514.273696406008821.5
3101.18333333333316.033705029396616.7
4113.22518.886701670752440.4
5112.917.708241532738938.1
6115.06666666666718.776645713290331.3






Regression: S.E.(k) = alpha + beta * Mean(k)
alpha-9.28103917754831
beta0.246030051619114
S.D.0.0576715315410326
T-STAT4.2660571870554
p-value0.0129908124949643

\begin{tabular}{lllllllll}
\hline
Regression: S.E.(k) = alpha + beta * Mean(k) \tabularnewline
alpha & -9.28103917754831 \tabularnewline
beta & 0.246030051619114 \tabularnewline
S.D. & 0.0576715315410326 \tabularnewline
T-STAT & 4.2660571870554 \tabularnewline
p-value & 0.0129908124949643 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=7050&T=2

[TABLE]
[ROW][C]Regression: S.E.(k) = alpha + beta * Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]-9.28103917754831[/C][/ROW]
[ROW][C]beta[/C][C]0.246030051619114[/C][/ROW]
[ROW][C]S.D.[/C][C]0.0576715315410326[/C][/ROW]
[ROW][C]T-STAT[/C][C]4.2660571870554[/C][/ROW]
[ROW][C]p-value[/C][C]0.0129908124949643[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=7050&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=7050&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-9.28103917754831
beta0.246030051619114
S.D.0.0576715315410326
T-STAT4.2660571870554
p-value0.0129908124949643






Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha-4.60627788168782
beta1.59201154281815
S.D.0.370755100959081
T-STAT4.29397070653886
p-value0.0127061191081023
Lambda-0.592011542818152

\begin{tabular}{lllllllll}
\hline
Regression: ln S.E.(k) = alpha + beta * ln Mean(k) \tabularnewline
alpha & -4.60627788168782 \tabularnewline
beta & 1.59201154281815 \tabularnewline
S.D. & 0.370755100959081 \tabularnewline
T-STAT & 4.29397070653886 \tabularnewline
p-value & 0.0127061191081023 \tabularnewline
Lambda & -0.592011542818152 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=7050&T=3

[TABLE]
[ROW][C]Regression: ln S.E.(k) = alpha + beta * ln Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]-4.60627788168782[/C][/ROW]
[ROW][C]beta[/C][C]1.59201154281815[/C][/ROW]
[ROW][C]S.D.[/C][C]0.370755100959081[/C][/ROW]
[ROW][C]T-STAT[/C][C]4.29397070653886[/C][/ROW]
[ROW][C]p-value[/C][C]0.0127061191081023[/C][/ROW]
[ROW][C]Lambda[/C][C]-0.592011542818152[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=7050&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=7050&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-4.60627788168782
beta1.59201154281815
S.D.0.370755100959081
T-STAT4.29397070653886
p-value0.0127061191081023
Lambda-0.592011542818152


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')