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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 computationThu, 26 Nov 2009 13:53:58 -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/Nov/26/t1259269102ddxfokdzov80mkc.htm/, Retrieved Sun, 28 Apr 2024 21:42:34 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=60401, Retrieved Sun, 28 Apr 2024 21:42:34 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywordsSMP van Y(t)
Estimated Impact133

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Univariate Explorative Data Analysis] [Run Sequence gebo...] [2008-12-12 13:32:37] [76963dc1903f0f612b6153510a3818cf]
- R  D  [Univariate Explorative Data Analysis] [Run Sequence gebo...] [2008-12-17 12:14:40] [76963dc1903f0f612b6153510a3818cf]
-         [Univariate Explorative Data Analysis] [Run Sequence Plot...] [2008-12-22 18:19:51] [1ce0d16c8f4225c977b42c8fa93bc163]
- RMP       [Standard Deviation-Mean Plot] [Identifying Integ...] [2009-11-22 12:50:05] [b98453cac15ba1066b407e146608df68]
-    D          [Standard Deviation-Mean Plot] [SMP van Y(t)] [2009-11-26 20:53:58] [52b85b290d6f50b0921ad6729b8a5af2] [Current]
-   P             [Standard Deviation-Mean Plot] [] [2009-11-30 14:16:49] [3af9fa3d2c04a43d660a9a466bdfbaa0]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
220206
220115
218444
214912
210705
209673
237041
242081
241878
242621
238545
240337
244752
244576
241572
240541
236089
236997
264579
270349
269645
267037
258113
262813
267413
267366
264777
258863
254844
254868
277267
285351
286602
283042
276687
277915
277128
277103
275037
270150
267140
264993
287259
291186
292300
288186
281477
282656
280190
280408
276836
275216
274352
271311
289802
290726
292300
278506
269826
265861
269034
264176
255198
253353
246057
235372
258556
260993
254663
250643
243422
247105
248541
245039
237080
237085
225554
226839
247934
248333
246969
245098
246263
255765
264319
268347
273046
273963
267430
271993
292710
295881
293299
288576

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=60401&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=60401&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=60401&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
1228046.513383.463028542532948
2253088.58333333313478.585995829434260
3271249.58333333311467.079888718131758
4279551.259203.8733459441827307
5278777.8333333338478.0162648982226439
6253214.3333333339414.2813401509933662
7242541.6666666679117.645403116430211

\begin{tabular}{lllllllll}
\hline
Standard Deviation-Mean Plot \tabularnewline
Section & Mean & Standard Deviation & Range \tabularnewline
1 & 228046.5 & 13383.4630285425 & 32948 \tabularnewline
2 & 253088.583333333 & 13478.5859958294 & 34260 \tabularnewline
3 & 271249.583333333 & 11467.0798887181 & 31758 \tabularnewline
4 & 279551.25 & 9203.87334594418 & 27307 \tabularnewline
5 & 278777.833333333 & 8478.01626489822 & 26439 \tabularnewline
6 & 253214.333333333 & 9414.28134015099 & 33662 \tabularnewline
7 & 242541.666666667 & 9117.6454031164 & 30211 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=60401&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]228046.5[/C][C]13383.4630285425[/C][C]32948[/C][/ROW]
[ROW][C]2[/C][C]253088.583333333[/C][C]13478.5859958294[/C][C]34260[/C][/ROW]
[ROW][C]3[/C][C]271249.583333333[/C][C]11467.0798887181[/C][C]31758[/C][/ROW]
[ROW][C]4[/C][C]279551.25[/C][C]9203.87334594418[/C][C]27307[/C][/ROW]
[ROW][C]5[/C][C]278777.833333333[/C][C]8478.01626489822[/C][C]26439[/C][/ROW]
[ROW][C]6[/C][C]253214.333333333[/C][C]9414.28134015099[/C][C]33662[/C][/ROW]
[ROW][C]7[/C][C]242541.666666667[/C][C]9117.6454031164[/C][C]30211[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=60401&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=60401&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
1228046.513383.463028542532948
2253088.58333333313478.585995829434260
3271249.58333333311467.079888718131758
4279551.259203.8733459441827307
5278777.8333333338478.0162648982226439
6253214.3333333339414.2813401509933662
7242541.6666666679117.645403116430211






Regression: S.E.(k) = alpha + beta * Mean(k)
alpha25714.4587018777
beta-0.0583780966417754
S.D.0.0412019887897745
T-STAT-1.41687569839502
p-value0.215701853603056

\begin{tabular}{lllllllll}
\hline
Regression: S.E.(k) = alpha + beta * Mean(k) \tabularnewline
alpha & 25714.4587018777 \tabularnewline
beta & -0.0583780966417754 \tabularnewline
S.D. & 0.0412019887897745 \tabularnewline
T-STAT & -1.41687569839502 \tabularnewline
p-value & 0.215701853603056 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=60401&T=2

[TABLE]
[ROW][C]Regression: S.E.(k) = alpha + beta * Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]25714.4587018777[/C][/ROW]
[ROW][C]beta[/C][C]-0.0583780966417754[/C][/ROW]
[ROW][C]S.D.[/C][C]0.0412019887897745[/C][/ROW]
[ROW][C]T-STAT[/C][C]-1.41687569839502[/C][/ROW]
[ROW][C]p-value[/C][C]0.215701853603056[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=60401&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=60401&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)
alpha25714.4587018777
beta-0.0583780966417754
S.D.0.0412019887897745
T-STAT-1.41687569839502
p-value0.215701853603056






Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha26.0485604738886
beta-1.34780412435845
S.D.0.963395801677255
T-STAT-1.39901390686149
p-value0.22068160974946
Lambda2.34780412435845

\begin{tabular}{lllllllll}
\hline
Regression: ln S.E.(k) = alpha + beta * ln Mean(k) \tabularnewline
alpha & 26.0485604738886 \tabularnewline
beta & -1.34780412435845 \tabularnewline
S.D. & 0.963395801677255 \tabularnewline
T-STAT & -1.39901390686149 \tabularnewline
p-value & 0.22068160974946 \tabularnewline
Lambda & 2.34780412435845 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=60401&T=3

[TABLE]
[ROW][C]Regression: ln S.E.(k) = alpha + beta * ln Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]26.0485604738886[/C][/ROW]
[ROW][C]beta[/C][C]-1.34780412435845[/C][/ROW]
[ROW][C]S.D.[/C][C]0.963395801677255[/C][/ROW]
[ROW][C]T-STAT[/C][C]-1.39901390686149[/C][/ROW]
[ROW][C]p-value[/C][C]0.22068160974946[/C][/ROW]
[ROW][C]Lambda[/C][C]2.34780412435845[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=60401&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=60401&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)
alpha26.0485604738886
beta-1.34780412435845
S.D.0.963395801677255
T-STAT-1.39901390686149
p-value0.22068160974946
Lambda2.34780412435845


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')