Free Statistics

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Author's title

Author*Unverified author*
R Software Modulerwasp_smp.wasp
Title produced by softwareStandard Deviation-Mean Plot
Date of computationMon, 09 May 2011 20:56:20 +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/2011/May/09/t1304974418vbx3jtb47we4i4h.htm/, Retrieved Tue, 14 May 2024 20:43:56 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=121360, Retrieved Tue, 14 May 2024 20:43:56 +0000
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Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywordsKDGP2W83
Estimated Impact98
Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-       [Standard Deviation-Mean Plot] [IKO opdracht 8 we...] [2011-05-09 20:56:20] [27bda1a3a981631f705f83c894f67697] [Current]
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Dataseries X:
476
475
470
461
455
456
517
525
523
519
509
512
519
517
510
509
501
507
569
580
578
565
547
555
562
561
555
544
537
543
594
611
613
611
594
595
591
589
584
573
567
569
621
629
628
612
595
597
593
590
580
574
573
573
620
626
620
588
566
577
561
549
532
526
511
499
555
565
542
527
510
514
517
508
493
490
469
478
528
534
518
506
502
516
528
533
536
537
524
536
587
597
581
564
558
575
580
575
563
552
537
545
601
604
586
564
549
551
556




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' @ www.yougetit.org

\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' @ www.yougetit.org \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=121360&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' @ www.yougetit.org[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=121360&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=121360&T=0

As an alternative you can also use a 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' @ www.yougetit.org







Standard Deviation-Mean Plot
SectionMeanStandard DeviationRange
1491.528.195744359743470
2538.08333333333330.42265403918479
3576.66666666666729.10586736641876
4596.2521.975709731014862
559020.863190726078560
6532.58333333333321.831829696083466
7504.91666666666719.579480601028765
8554.66666666666725.535477400287773
9567.2522.01703885630467

\begin{tabular}{lllllllll}
\hline
Standard Deviation-Mean Plot \tabularnewline
Section & Mean & Standard Deviation & Range \tabularnewline
1 & 491.5 & 28.1957443597434 & 70 \tabularnewline
2 & 538.083333333333 & 30.422654039184 & 79 \tabularnewline
3 & 576.666666666667 & 29.105867366418 & 76 \tabularnewline
4 & 596.25 & 21.9757097310148 & 62 \tabularnewline
5 & 590 & 20.8631907260785 & 60 \tabularnewline
6 & 532.583333333333 & 21.8318296960834 & 66 \tabularnewline
7 & 504.916666666667 & 19.5794806010287 & 65 \tabularnewline
8 & 554.666666666667 & 25.5354774002877 & 73 \tabularnewline
9 & 567.25 & 22.017038856304 & 67 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=121360&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]491.5[/C][C]28.1957443597434[/C][C]70[/C][/ROW]
[ROW][C]2[/C][C]538.083333333333[/C][C]30.422654039184[/C][C]79[/C][/ROW]
[ROW][C]3[/C][C]576.666666666667[/C][C]29.105867366418[/C][C]76[/C][/ROW]
[ROW][C]4[/C][C]596.25[/C][C]21.9757097310148[/C][C]62[/C][/ROW]
[ROW][C]5[/C][C]590[/C][C]20.8631907260785[/C][C]60[/C][/ROW]
[ROW][C]6[/C][C]532.583333333333[/C][C]21.8318296960834[/C][C]66[/C][/ROW]
[ROW][C]7[/C][C]504.916666666667[/C][C]19.5794806010287[/C][C]65[/C][/ROW]
[ROW][C]8[/C][C]554.666666666667[/C][C]25.5354774002877[/C][C]73[/C][/ROW]
[ROW][C]9[/C][C]567.25[/C][C]22.017038856304[/C][C]67[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=121360&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=121360&T=1

As an alternative you can also use a QR Code:  

The GUIDs for individual cells are displayed in the table below:

Standard Deviation-Mean Plot
SectionMeanStandard DeviationRange
1491.528.195744359743470
2538.08333333333330.42265403918479
3576.66666666666729.10586736641876
4596.2521.975709731014862
559020.863190726078560
6532.58333333333321.831829696083466
7504.91666666666719.579480601028765
8554.66666666666725.535477400287773
9567.2522.01703885630467







Regression: S.E.(k) = alpha + beta * Mean(k)
alpha34.4823443584816
beta-0.0183391831008583
S.D.0.0408164828145299
T-STAT-0.449308265589456
p-value0.666790807741212

\begin{tabular}{lllllllll}
\hline
Regression: S.E.(k) = alpha + beta * Mean(k) \tabularnewline
alpha & 34.4823443584816 \tabularnewline
beta & -0.0183391831008583 \tabularnewline
S.D. & 0.0408164828145299 \tabularnewline
T-STAT & -0.449308265589456 \tabularnewline
p-value & 0.666790807741212 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=121360&T=2

[TABLE]
[ROW][C]Regression: S.E.(k) = alpha + beta * Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]34.4823443584816[/C][/ROW]
[ROW][C]beta[/C][C]-0.0183391831008583[/C][/ROW]
[ROW][C]S.D.[/C][C]0.0408164828145299[/C][/ROW]
[ROW][C]T-STAT[/C][C]-0.449308265589456[/C][/ROW]
[ROW][C]p-value[/C][C]0.666790807741212[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=121360&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=121360&T=2

As an alternative you can also use a QR Code:  

The GUIDs for individual cells are displayed in the table below:

Regression: S.E.(k) = alpha + beta * Mean(k)
alpha34.4823443584816
beta-0.0183391831008583
S.D.0.0408164828145299
T-STAT-0.449308265589456
p-value0.666790807741212







Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha5.4056126659288
beta-0.352401893614525
S.D.0.897196980800954
T-STAT-0.392780962436951
p-value0.706167911406802
Lambda1.35240189361453

\begin{tabular}{lllllllll}
\hline
Regression: ln S.E.(k) = alpha + beta * ln Mean(k) \tabularnewline
alpha & 5.4056126659288 \tabularnewline
beta & -0.352401893614525 \tabularnewline
S.D. & 0.897196980800954 \tabularnewline
T-STAT & -0.392780962436951 \tabularnewline
p-value & 0.706167911406802 \tabularnewline
Lambda & 1.35240189361453 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=121360&T=3

[TABLE]
[ROW][C]Regression: ln S.E.(k) = alpha + beta * ln Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]5.4056126659288[/C][/ROW]
[ROW][C]beta[/C][C]-0.352401893614525[/C][/ROW]
[ROW][C]S.D.[/C][C]0.897196980800954[/C][/ROW]
[ROW][C]T-STAT[/C][C]-0.392780962436951[/C][/ROW]
[ROW][C]p-value[/C][C]0.706167911406802[/C][/ROW]
[ROW][C]Lambda[/C][C]1.35240189361453[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=121360&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=121360&T=3

As an alternative you can also use a QR Code:  

The GUIDs for individual cells are displayed in the table below:

Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha5.4056126659288
beta-0.352401893614525
S.D.0.897196980800954
T-STAT-0.392780962436951
p-value0.706167911406802
Lambda1.35240189361453



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')