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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 computationFri, 26 Apr 2013 15:18:06 -0400
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2013/Apr/26/t13670039326nqcm0baqfa66tn.htm/, Retrieved Sat, 27 Apr 2024 07:10:12 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=208409, Retrieved Sat, 27 Apr 2024 07:10:12 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact80

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] [de spreidings- en...] [2013-04-26 19:18:06] [d0c193e893cebff5c92468d6d00a5cdb] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
99.23
101.14
100.8
98.93
100.97
101.69
102.14
102.52
103.4
105.83
104.35
106.61
105.63
106.73
106.19
107.26
106.27
107.45
107.63
107.45
107.74
108.15
108.99
108.83
110.78
110.66
108.51
108.29
109.33
107.06
108.02
109.43
109.85
110.5
109.9
110.92
108.36
109.01
108.03
106.28
106.6
108.06
107.42
107.58
107.59
109.66
107.85
110.74
108.8
109.18
108.38
108.59
109.52
108.71
109.78
109.77
109.34
111.86
110.74
110.67
111.36
112.21
110.2
110.99
110.43
110.72
111.19
111.52
111.99
111.65
114.45
115.58

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time2 seconds
R Server'George Udny Yule' @ yule.wessa.net

\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' @ yule.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=208409&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' @ yule.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=208409&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=208409&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 time2 seconds
R Server'George Udny Yule' @ yule.wessa.net






Standard Deviation-Mean Plot
SectionMeanStandard DeviationRange
1102.3008333333332.393967639841037.67999999999999
2107.361.028334929520893.36
3109.43751.23796111702783.86
4108.0983333333331.24035063468754.45999999999999
5109.6116666666671.035846894033473.48
6111.85751.606844027052015.38

\begin{tabular}{lllllllll}
\hline
Standard Deviation-Mean Plot \tabularnewline
Section & Mean & Standard Deviation & Range \tabularnewline
1 & 102.300833333333 & 2.39396763984103 & 7.67999999999999 \tabularnewline
2 & 107.36 & 1.02833492952089 & 3.36 \tabularnewline
3 & 109.4375 & 1.2379611170278 & 3.86 \tabularnewline
4 & 108.098333333333 & 1.2403506346875 & 4.45999999999999 \tabularnewline
5 & 109.611666666667 & 1.03584689403347 & 3.48 \tabularnewline
6 & 111.8575 & 1.60684402705201 & 5.38 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=208409&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]102.300833333333[/C][C]2.39396763984103[/C][C]7.67999999999999[/C][/ROW]
[ROW][C]2[/C][C]107.36[/C][C]1.02833492952089[/C][C]3.36[/C][/ROW]
[ROW][C]3[/C][C]109.4375[/C][C]1.2379611170278[/C][C]3.86[/C][/ROW]
[ROW][C]4[/C][C]108.098333333333[/C][C]1.2403506346875[/C][C]4.45999999999999[/C][/ROW]
[ROW][C]5[/C][C]109.611666666667[/C][C]1.03584689403347[/C][C]3.48[/C][/ROW]
[ROW][C]6[/C][C]111.8575[/C][C]1.60684402705201[/C][C]5.38[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=208409&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=208409&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
1102.3008333333332.393967639841037.67999999999999
2107.361.028334929520893.36
3109.43751.23796111702783.86
4108.0983333333331.24035063468754.45999999999999
5109.6116666666671.035846894033473.48
6111.85751.606844027052015.38






Regression: S.E.(k) = alpha + beta * Mean(k)
alpha12.7375317480518
beta-0.10464846729682
S.D.0.0608755974582215
T-STAT-1.71905445968953
p-value0.160727817640347

\begin{tabular}{lllllllll}
\hline
Regression: S.E.(k) = alpha + beta * Mean(k) \tabularnewline
alpha & 12.7375317480518 \tabularnewline
beta & -0.10464846729682 \tabularnewline
S.D. & 0.0608755974582215 \tabularnewline
T-STAT & -1.71905445968953 \tabularnewline
p-value & 0.160727817640347 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=208409&T=2

[TABLE]
[ROW][C]Regression: S.E.(k) = alpha + beta * Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]12.7375317480518[/C][/ROW]
[ROW][C]beta[/C][C]-0.10464846729682[/C][/ROW]
[ROW][C]S.D.[/C][C]0.0608755974582215[/C][/ROW]
[ROW][C]T-STAT[/C][C]-1.71905445968953[/C][/ROW]
[ROW][C]p-value[/C][C]0.160727817640347[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=208409&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=208409&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)
alpha12.7375317480518
beta-0.10464846729682
S.D.0.0608755974582215
T-STAT-1.71905445968953
p-value0.160727817640347






Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha29.3255286410094
beta-6.19695956157029
S.D.4.30284133093913
T-STAT-1.44020173763129
p-value0.223233986089584
Lambda7.19695956157029

\begin{tabular}{lllllllll}
\hline
Regression: ln S.E.(k) = alpha + beta * ln Mean(k) \tabularnewline
alpha & 29.3255286410094 \tabularnewline
beta & -6.19695956157029 \tabularnewline
S.D. & 4.30284133093913 \tabularnewline
T-STAT & -1.44020173763129 \tabularnewline
p-value & 0.223233986089584 \tabularnewline
Lambda & 7.19695956157029 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=208409&T=3

[TABLE]
[ROW][C]Regression: ln S.E.(k) = alpha + beta * ln Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]29.3255286410094[/C][/ROW]
[ROW][C]beta[/C][C]-6.19695956157029[/C][/ROW]
[ROW][C]S.D.[/C][C]4.30284133093913[/C][/ROW]
[ROW][C]T-STAT[/C][C]-1.44020173763129[/C][/ROW]
[ROW][C]p-value[/C][C]0.223233986089584[/C][/ROW]
[ROW][C]Lambda[/C][C]7.19695956157029[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=208409&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=208409&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)
alpha29.3255286410094
beta-6.19695956157029
S.D.4.30284133093913
T-STAT-1.44020173763129
p-value0.223233986089584
Lambda7.19695956157029


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')