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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 computationTue, 22 Mar 2016 22:24:40 +0000
Cite this page as followsStatistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?v=date/2016/Mar/22/t1458685500vnrgrk9w8drpfku.htm/, Retrieved Mon, 29 Apr 2024 09:48:22 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=294499, Retrieved Mon, 29 Apr 2024 09:48:22 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact55

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] [Verhuur en handel...] [2016-03-22 22:24:40] [38f93cf143127a30e50d4675c70fea9c] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
16,8
17,2
17,4
17,6
17,7
17,7
17,6
17,6
17,5
17,5
17,6
17,6
17,9
18,2
18,4
18,5
19
19,5
19,7
19,9
19,7
19,5
19,7
19,7
19,7
19,9
20,1
20,1
20,1
20,1
20,2
20,3
20,8
21,1
21,2
21,3
21,6
21,7
21,8
22
21,9
21,9
22
22,1
21
19,7
19,8
19,9
19,8
20
20,2
20,3
20,7
20,9
21
21,2
23,7
23,7
23,7
23,8
24
24
24,1
24,3
24,4
24,4
24,5
24,6
24,7
24,6
24,6
24,6
24,7
24,7
24,8
24,9
25
25,1
25,2
25,3

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'Herman Ole Andreas Wold' @ wold.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 & 1 seconds \tabularnewline
R Server & 'Herman Ole Andreas Wold' @ wold.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=294499&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]'Herman Ole Andreas Wold' @ wold.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=294499&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=294499&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'Herman Ole Andreas Wold' @ wold.wessa.net






Standard Deviation-Mean Plot
SectionMeanStandard DeviationRange
117.48333333333330.255247948378660.899999999999999
219.14166666666670.7064100448855122
320.40833333333330.5434876152027641.6
421.28333333333330.9388903831199642.4
521.58333333333331.633085942922084
624.40.2486326242032250.699999999999999

\begin{tabular}{lllllllll}
\hline
Standard Deviation-Mean Plot \tabularnewline
Section & Mean & Standard Deviation & Range \tabularnewline
1 & 17.4833333333333 & 0.25524794837866 & 0.899999999999999 \tabularnewline
2 & 19.1416666666667 & 0.706410044885512 & 2 \tabularnewline
3 & 20.4083333333333 & 0.543487615202764 & 1.6 \tabularnewline
4 & 21.2833333333333 & 0.938890383119964 & 2.4 \tabularnewline
5 & 21.5833333333333 & 1.63308594292208 & 4 \tabularnewline
6 & 24.4 & 0.248632624203225 & 0.699999999999999 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=294499&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]17.4833333333333[/C][C]0.25524794837866[/C][C]0.899999999999999[/C][/ROW]
[ROW][C]2[/C][C]19.1416666666667[/C][C]0.706410044885512[/C][C]2[/C][/ROW]
[ROW][C]3[/C][C]20.4083333333333[/C][C]0.543487615202764[/C][C]1.6[/C][/ROW]
[ROW][C]4[/C][C]21.2833333333333[/C][C]0.938890383119964[/C][C]2.4[/C][/ROW]
[ROW][C]5[/C][C]21.5833333333333[/C][C]1.63308594292208[/C][C]4[/C][/ROW]
[ROW][C]6[/C][C]24.4[/C][C]0.248632624203225[/C][C]0.699999999999999[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=294499&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=294499&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
117.48333333333330.255247948378660.899999999999999
219.14166666666670.7064100448855122
320.40833333333330.5434876152027641.6
421.28333333333330.9388903831199642.4
521.58333333333331.633085942922084
624.40.2486326242032250.699999999999999






Regression: S.E.(k) = alpha + beta * Mean(k)
alpha0.153648850482265
beta0.0273842434096429
S.D.0.109638524098811
T-STAT0.249768442568263
p-value0.815069082815248

\begin{tabular}{lllllllll}
\hline
Regression: S.E.(k) = alpha + beta * Mean(k) \tabularnewline
alpha & 0.153648850482265 \tabularnewline
beta & 0.0273842434096429 \tabularnewline
S.D. & 0.109638524098811 \tabularnewline
T-STAT & 0.249768442568263 \tabularnewline
p-value & 0.815069082815248 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=294499&T=2

[TABLE]
[ROW][C]Regression: S.E.(k) = alpha + beta * Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]0.153648850482265[/C][/ROW]
[ROW][C]beta[/C][C]0.0273842434096429[/C][/ROW]
[ROW][C]S.D.[/C][C]0.109638524098811[/C][/ROW]
[ROW][C]T-STAT[/C][C]0.249768442568263[/C][/ROW]
[ROW][C]p-value[/C][C]0.815069082815248[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=294499&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=294499&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)
alpha0.153648850482265
beta0.0273842434096429
S.D.0.109638524098811
T-STAT0.249768442568263
p-value0.815069082815248






Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha-2.49501704899216
beta0.643562873681606
S.D.3.24708291042277
T-STAT0.198197240857584
p-value0.852556157968065
Lambda0.356437126318394

\begin{tabular}{lllllllll}
\hline
Regression: ln S.E.(k) = alpha + beta * ln Mean(k) \tabularnewline
alpha & -2.49501704899216 \tabularnewline
beta & 0.643562873681606 \tabularnewline
S.D. & 3.24708291042277 \tabularnewline
T-STAT & 0.198197240857584 \tabularnewline
p-value & 0.852556157968065 \tabularnewline
Lambda & 0.356437126318394 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=294499&T=3

[TABLE]
[ROW][C]Regression: ln S.E.(k) = alpha + beta * ln Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]-2.49501704899216[/C][/ROW]
[ROW][C]beta[/C][C]0.643562873681606[/C][/ROW]
[ROW][C]S.D.[/C][C]3.24708291042277[/C][/ROW]
[ROW][C]T-STAT[/C][C]0.198197240857584[/C][/ROW]
[ROW][C]p-value[/C][C]0.852556157968065[/C][/ROW]
[ROW][C]Lambda[/C][C]0.356437126318394[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=294499&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=294499&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-2.49501704899216
beta0.643562873681606
S.D.3.24708291042277
T-STAT0.198197240857584
p-value0.852556157968065
Lambda0.356437126318394


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')