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Description of Statistical Computation

Author's title

Author*The author of this computation has been verified*
R Software Modulerwasp_variancereduction.wasp
Title produced by softwareVariance Reduction Matrix
Date of computationFri, 04 Dec 2009 09:30:18 -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/Dec/04/t1259944239jcnm8j3fj5uskie.htm/, Retrieved Sat, 27 Apr 2024 19:17:32 +0000
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL https://freestatistics.org/blog/index.php?pk=63864, Retrieved Sat, 27 Apr 2024 19:17:32 +0000
QR Codes:

Original text written by user:
IsPrivate?No (this computation is public)
User-defined keywords
Estimated Impact78

Tree of Dependent Computations

Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
-     [Univariate Data Series] [data set] [2008-12-01 19:54:57] [b98453cac15ba1066b407e146608df68]
- RMP   [Variance Reduction Matrix] [] [2009-11-27 14:44:05] [b98453cac15ba1066b407e146608df68]
-    D      [Variance Reduction Matrix] [] [2009-12-04 16:30:18] [c5f9f441970441f2f938cd843072158d] [Current]
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Dataset

Dataseries X:
Download CSV
Histogram
Boxplots 
14.9
18.6
19.1
18.8
18.2
18
19
20.7
21.2
20.7
19.6
18.6
18.7
23.8
24.9
24.8
23.8
22.3
21.7
20.7
19.7
18.4
17.4
17
18
23.8
25.5
25.6
23.7
22
21.3
20.7
20.4
20.3
20.4
19.8
19.5
23.1
23.5
23.5
22.9
21.9
21.5
20.5
20.2
19.4
19.2
18.8
18.8
22.6
23.3
23
21.4
19.9
18.8
18.6
18.4
18.6
19.9
19.2
18.4

Tables (Output of Computation)





Summary of computational transaction
Raw Inputview raw input (R code)
Raw Outputview raw output of R engine
Computing time0 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 & 0 seconds \tabularnewline
R Server & 'Gwilym Jenkins' @ 72.249.127.135 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=63864&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]0 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=63864&T=0

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=63864&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 time0 seconds
R Server'Gwilym Jenkins' @ 72.249.127.135






Variance Reduction Matrix
V(Y[t],d=0,D=0)5.30295628415301Range10.7Trim Var.3.21231900452489
V(Y[t],d=1,D=0)2.41569209039548Range7.7Trim Var.1.11157232704402
V(Y[t],d=2,D=0)2.9856341320865Range9.1Trim Var.1.11189668174962
V(Y[t],d=3,D=0)6.78709316394435Range12.9Trim Var.2.42771764705882
V(Y[t],d=0,D=1)4.99Range8.7Trim Var.2.97712070874862
V(Y[t],d=1,D=1)0.868351063829787Range4.20000000000000Trim Var.0.500098722415796
V(Y[t],d=2,D=1)0.591674375578168Range3.3Trim Var.0.335681511470986
V(Y[t],d=3,D=1)0.997067632850242Range4.59999999999999Trim Var.0.485891025641027
V(Y[t],d=0,D=2)8.13833333333334Range10.9Trim Var.5.41740927419355
V(Y[t],d=1,D=2)2.31314285714286Range6Trim Var.1.67410282258065
V(Y[t],d=2,D=2)1.69339495798319Range4.8Trim Var.1.22580645161290
V(Y[t],d=3,D=2)2.8042513368984Range7.00000000000001Trim Var.1.71481609195402

\begin{tabular}{lllllllll}
\hline
Variance Reduction Matrix \tabularnewline
V(Y[t],d=0,D=0) & 5.30295628415301 & Range & 10.7 & Trim Var. & 3.21231900452489 \tabularnewline
V(Y[t],d=1,D=0) & 2.41569209039548 & Range & 7.7 & Trim Var. & 1.11157232704402 \tabularnewline
V(Y[t],d=2,D=0) & 2.9856341320865 & Range & 9.1 & Trim Var. & 1.11189668174962 \tabularnewline
V(Y[t],d=3,D=0) & 6.78709316394435 & Range & 12.9 & Trim Var. & 2.42771764705882 \tabularnewline
V(Y[t],d=0,D=1) & 4.99 & Range & 8.7 & Trim Var. & 2.97712070874862 \tabularnewline
V(Y[t],d=1,D=1) & 0.868351063829787 & Range & 4.20000000000000 & Trim Var. & 0.500098722415796 \tabularnewline
V(Y[t],d=2,D=1) & 0.591674375578168 & Range & 3.3 & Trim Var. & 0.335681511470986 \tabularnewline
V(Y[t],d=3,D=1) & 0.997067632850242 & Range & 4.59999999999999 & Trim Var. & 0.485891025641027 \tabularnewline
V(Y[t],d=0,D=2) & 8.13833333333334 & Range & 10.9 & Trim Var. & 5.41740927419355 \tabularnewline
V(Y[t],d=1,D=2) & 2.31314285714286 & Range & 6 & Trim Var. & 1.67410282258065 \tabularnewline
V(Y[t],d=2,D=2) & 1.69339495798319 & Range & 4.8 & Trim Var. & 1.22580645161290 \tabularnewline
V(Y[t],d=3,D=2) & 2.8042513368984 & Range & 7.00000000000001 & Trim Var. & 1.71481609195402 \tabularnewline
\hline
\end{tabular}
%Source: https://freestatistics.org/blog/index.php?pk=63864&T=1

[TABLE]
[ROW][C]Variance Reduction Matrix[/C][/ROW]
[ROW][C]V(Y[t],d=0,D=0)[/C][C]5.30295628415301[/C][C]Range[/C][C]10.7[/C][C]Trim Var.[/C][C]3.21231900452489[/C][/ROW]
[ROW][C]V(Y[t],d=1,D=0)[/C][C]2.41569209039548[/C][C]Range[/C][C]7.7[/C][C]Trim Var.[/C][C]1.11157232704402[/C][/ROW]
[ROW][C]V(Y[t],d=2,D=0)[/C][C]2.9856341320865[/C][C]Range[/C][C]9.1[/C][C]Trim Var.[/C][C]1.11189668174962[/C][/ROW]
[ROW][C]V(Y[t],d=3,D=0)[/C][C]6.78709316394435[/C][C]Range[/C][C]12.9[/C][C]Trim Var.[/C][C]2.42771764705882[/C][/ROW]
[ROW][C]V(Y[t],d=0,D=1)[/C][C]4.99[/C][C]Range[/C][C]8.7[/C][C]Trim Var.[/C][C]2.97712070874862[/C][/ROW]
[ROW][C]V(Y[t],d=1,D=1)[/C][C]0.868351063829787[/C][C]Range[/C][C]4.20000000000000[/C][C]Trim Var.[/C][C]0.500098722415796[/C][/ROW]
[ROW][C]V(Y[t],d=2,D=1)[/C][C]0.591674375578168[/C][C]Range[/C][C]3.3[/C][C]Trim Var.[/C][C]0.335681511470986[/C][/ROW]
[ROW][C]V(Y[t],d=3,D=1)[/C][C]0.997067632850242[/C][C]Range[/C][C]4.59999999999999[/C][C]Trim Var.[/C][C]0.485891025641027[/C][/ROW]
[ROW][C]V(Y[t],d=0,D=2)[/C][C]8.13833333333334[/C][C]Range[/C][C]10.9[/C][C]Trim Var.[/C][C]5.41740927419355[/C][/ROW]
[ROW][C]V(Y[t],d=1,D=2)[/C][C]2.31314285714286[/C][C]Range[/C][C]6[/C][C]Trim Var.[/C][C]1.67410282258065[/C][/ROW]
[ROW][C]V(Y[t],d=2,D=2)[/C][C]1.69339495798319[/C][C]Range[/C][C]4.8[/C][C]Trim Var.[/C][C]1.22580645161290[/C][/ROW]
[ROW][C]V(Y[t],d=3,D=2)[/C][C]2.8042513368984[/C][C]Range[/C][C]7.00000000000001[/C][C]Trim Var.[/C][C]1.71481609195402[/C][/ROW]
[/TABLE]
Source: https://freestatistics.org/blog/index.php?pk=63864&T=1

Globally Unique Identifier (entire table): ba.freestatistics.org/blog/index.php?pk=63864&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:

Variance Reduction Matrix
V(Y[t],d=0,D=0)5.30295628415301Range10.7Trim Var.3.21231900452489
V(Y[t],d=1,D=0)2.41569209039548Range7.7Trim Var.1.11157232704402
V(Y[t],d=2,D=0)2.9856341320865Range9.1Trim Var.1.11189668174962
V(Y[t],d=3,D=0)6.78709316394435Range12.9Trim Var.2.42771764705882
V(Y[t],d=0,D=1)4.99Range8.7Trim Var.2.97712070874862
V(Y[t],d=1,D=1)0.868351063829787Range4.20000000000000Trim Var.0.500098722415796
V(Y[t],d=2,D=1)0.591674375578168Range3.3Trim Var.0.335681511470986
V(Y[t],d=3,D=1)0.997067632850242Range4.59999999999999Trim Var.0.485891025641027
V(Y[t],d=0,D=2)8.13833333333334Range10.9Trim Var.5.41740927419355
V(Y[t],d=1,D=2)2.31314285714286Range6Trim Var.1.67410282258065
V(Y[t],d=2,D=2)1.69339495798319Range4.8Trim Var.1.22580645161290
V(Y[t],d=3,D=2)2.8042513368984Range7.00000000000001Trim Var.1.71481609195402


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)
sx <- sort(x)
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Variance Reduction Matrix',6,TRUE)
a<-table.row.end(a)
for (bigd in 0:2) {
for (smalld in 0:3) {
mylabel <- 'V(Y[t],d='
mylabel <- paste(mylabel,as.character(smalld),sep='')
mylabel <- paste(mylabel,',D=',sep='')
mylabel <- paste(mylabel,as.character(bigd),sep='')
mylabel <- paste(mylabel,')',sep='')
a<-table.row.start(a)
a<-table.element(a,mylabel,header=TRUE)
myx <- x
if (smalld > 0) myx <- diff(x,lag=1,differences=smalld)
if (bigd > 0) myx <- diff(myx,lag=par1,differences=bigd)
a<-table.element(a,var(myx))
a<-table.element(a,'Range',header=TRUE)
a<-table.element(a,max(myx)-min(myx))
a<-table.element(a,'Trim Var.',header=TRUE)
smyx <- sort(myx)
sn <- length(smyx)
a<-table.element(a,var(smyx[smyx>quantile(smyx,0.05) & smyxa<-table.row.end(a)
}
}
a<-table.end(a)
table.save(a,file='mytable.tab')