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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 computationThu, 12 Mar 2015 21:25:17 +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/2015/Mar/12/t1426195531rxsqrtr7i570ugu.htm/, Retrieved Sun, 19 May 2024 13:21:04 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=278372, Retrieved Sun, 19 May 2024 13:21:04 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact129

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] [] [2015-03-12 21:25:17] [b81b5adcb18a6dd731e9cb79a54989dd] [Current]
- R PD    [Standard Deviation-Mean Plot] [REEKS A: oefening 10] [2015-07-10 23:15:05] [6b666be92a2717ec998be34b30849c21]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
101.94
102.62
102.71
103.39
104.51
104.09
104.29
104.57
105.39
105.15
106.13
105.46
106.47
106.62
106.52
108.04
107.15
107.32
107.76
107.26
107.89
109.08
110.4
111.03
112.05
112.28
112.8
114.17
114.92
114.65
115.49
114.67
114.71
115.15
115.03
115.07
116.46
116.37
116.2
116.5
116.38
115.44
114.96
114.48
114.3
114.66
114.97
114.79
116.16
116.52
117.14
117.27
117.58
117.21
117.08
117.06
117.55
117.61
117.74
117.87
118.59
119.09
118.93
119.62
120.09
120.38
120.49
120.02
120.17
120.58
121.54
121.51
121.81
122.85
122.97
122.96
123.4
123.23
123.24
123.72
123.99
125.1
125.4
125.35
126.37
127.17
127.66
128.48
129.21
129.48
128.63
128.16
128.1
128.08
128.14
128.19

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'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 & 1 seconds \tabularnewline
R Server & 'George Udny Yule' @ yule.wessa.net \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=278372&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]'George Udny Yule' @ yule.wessa.net[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=278372&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=278372&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'George Udny Yule' @ yule.wessa.net






Standard Deviation-Mean Plot
SectionMeanStandard DeviationRange
1104.18751.292025365638984.19
2107.9616666666671.487192799956494.56
3114.2491666666671.185330474312263.44
4115.4591666666670.8628226230158072.2
5117.23250.4999477245400041.71000000000001
6120.0841666666670.9259143719817852.95
7123.6683333333331.109568575727713.59
8128.1391666666670.8316736503016423.10999999999999

\begin{tabular}{lllllllll}
\hline
Standard Deviation-Mean Plot \tabularnewline
Section & Mean & Standard Deviation & Range \tabularnewline
1 & 104.1875 & 1.29202536563898 & 4.19 \tabularnewline
2 & 107.961666666667 & 1.48719279995649 & 4.56 \tabularnewline
3 & 114.249166666667 & 1.18533047431226 & 3.44 \tabularnewline
4 & 115.459166666667 & 0.862822623015807 & 2.2 \tabularnewline
5 & 117.2325 & 0.499947724540004 & 1.71000000000001 \tabularnewline
6 & 120.084166666667 & 0.925914371981785 & 2.95 \tabularnewline
7 & 123.668333333333 & 1.10956857572771 & 3.59 \tabularnewline
8 & 128.139166666667 & 0.831673650301642 & 3.10999999999999 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=278372&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]104.1875[/C][C]1.29202536563898[/C][C]4.19[/C][/ROW]
[ROW][C]2[/C][C]107.961666666667[/C][C]1.48719279995649[/C][C]4.56[/C][/ROW]
[ROW][C]3[/C][C]114.249166666667[/C][C]1.18533047431226[/C][C]3.44[/C][/ROW]
[ROW][C]4[/C][C]115.459166666667[/C][C]0.862822623015807[/C][C]2.2[/C][/ROW]
[ROW][C]5[/C][C]117.2325[/C][C]0.499947724540004[/C][C]1.71000000000001[/C][/ROW]
[ROW][C]6[/C][C]120.084166666667[/C][C]0.925914371981785[/C][C]2.95[/C][/ROW]
[ROW][C]7[/C][C]123.668333333333[/C][C]1.10956857572771[/C][C]3.59[/C][/ROW]
[ROW][C]8[/C][C]128.139166666667[/C][C]0.831673650301642[/C][C]3.10999999999999[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=278372&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=278372&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
1104.18751.292025365638984.19
2107.9616666666671.487192799956494.56
3114.2491666666671.185330474312263.44
4115.4591666666670.8628226230158072.2
5117.23250.4999477245400041.71000000000001
6120.0841666666670.9259143719817852.95
7123.6683333333331.109568575727713.59
8128.1391666666670.8316736503016423.10999999999999






Regression: S.E.(k) = alpha + beta * Mean(k)
alpha3.6747081535931
beta-0.0227750882777178
S.D.0.0130997255356815
T-STAT-1.73859278316039
p-value0.132768444214101

\begin{tabular}{lllllllll}
\hline
Regression: S.E.(k) = alpha + beta * Mean(k) \tabularnewline
alpha & 3.6747081535931 \tabularnewline
beta & -0.0227750882777178 \tabularnewline
S.D. & 0.0130997255356815 \tabularnewline
T-STAT & -1.73859278316039 \tabularnewline
p-value & 0.132768444214101 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=278372&T=2

[TABLE]
[ROW][C]Regression: S.E.(k) = alpha + beta * Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]3.6747081535931[/C][/ROW]
[ROW][C]beta[/C][C]-0.0227750882777178[/C][/ROW]
[ROW][C]S.D.[/C][C]0.0130997255356815[/C][/ROW]
[ROW][C]T-STAT[/C][C]-1.73859278316039[/C][/ROW]
[ROW][C]p-value[/C][C]0.132768444214101[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=278372&T=2

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=278372&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)
alpha3.6747081535931
beta-0.0227750882777178
S.D.0.0130997255356815
T-STAT-1.73859278316039
p-value0.132768444214101






Regression: ln S.E.(k) = alpha + beta * ln Mean(k)
alpha11.6837770697566
beta-2.46186375999102
S.D.1.76964598919283
T-STAT-1.3911617210592
p-value0.213570643873337
Lambda3.46186375999102

\begin{tabular}{lllllllll}
\hline
Regression: ln S.E.(k) = alpha + beta * ln Mean(k) \tabularnewline
alpha & 11.6837770697566 \tabularnewline
beta & -2.46186375999102 \tabularnewline
S.D. & 1.76964598919283 \tabularnewline
T-STAT & -1.3911617210592 \tabularnewline
p-value & 0.213570643873337 \tabularnewline
Lambda & 3.46186375999102 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=278372&T=3

[TABLE]
[ROW][C]Regression: ln S.E.(k) = alpha + beta * ln Mean(k)[/C][/ROW]
[ROW][C]alpha[/C][C]11.6837770697566[/C][/ROW]
[ROW][C]beta[/C][C]-2.46186375999102[/C][/ROW]
[ROW][C]S.D.[/C][C]1.76964598919283[/C][/ROW]
[ROW][C]T-STAT[/C][C]-1.3911617210592[/C][/ROW]
[ROW][C]p-value[/C][C]0.213570643873337[/C][/ROW]
[ROW][C]Lambda[/C][C]3.46186375999102[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=278372&T=3

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=278372&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)
alpha11.6837770697566
beta-2.46186375999102
S.D.1.76964598919283
T-STAT-1.3911617210592
p-value0.213570643873337
Lambda3.46186375999102


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 <- '12'
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')