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Variance Reduction Matrix: Algemene Economie

R Software Module: rwasp_variancereduction.wasp (opens new window with default values)
Title produced by software: Variance Reduction Matrix
Date of computation: Thu, 22 Nov 2007 06:17:50 -0700
 
Cite this page as follows:
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL http://www.freestatistics.org/blog/date/2007/Nov/22/t1195736998nh3rusni6jg4ihg.htm/, Retrieved Thu, 22 Nov 2007 14:09:58 +0100
 
User-defined keywords:
W10Q2G7
 
Dataseries X:
» Textbox « » Textfile « » CSV «
87 75 74 91 101 103 106 102 105 105 100 95 96 98 99 92 84 81 72 89 96 91 88 90 98 87 100 100 104 107 105 102 98 106 97 101 100 93 94 96 96 98 102 95 85 84 82 87 77 90 90 94 97 96 93 93 93 97 100 95 97 103 102 93 99 100 97 104 102 103 100 90 90
 
Text written by user:
 
Output produced by software:


Summary of compuational 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


Variance Reduction Matrix
V(Y[t],d=0,D=0)62.3732876712329Range35Trim Var.33.9907834101382
V(Y[t],d=1,D=0)38.2376760563380Range29Trim Var.19.8991295442908
V(Y[t],d=2,D=0)83.3995975855131Range45Trim Var.41.3432046536224
V(Y[t],d=3,D=0)249.840372670807Range80Trim Var.118.351136964569
V(Y[t],d=0,D=1)173.501092896175Range67Trim Var.93.1240928882438
V(Y[t],d=1,D=1)84.8429378531073Range45Trim Var.50.4056603773585
V(Y[t],d=2,D=1)174.166569257744Range60Trim Var.109.406386066763
V(Y[t],d=3,D=1)524.4407138536Range95Trim Var.350.58371040724
V(Y[t],d=0,D=2)566.403911564626Range104Trim Var.353.0642303433
V(Y[t],d=1,D=2)237.992907801418Range72Trim Var.140.288617886179
V(Y[t],d=2,D=2)463.030527289547Range97Trim Var.229.015384615385
V(Y[t],d=3,D=2)1331.24057971014Range166Trim Var.680.199358974359
 
Charts produced by software:
 
Parameters:
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) & smyx<quantile(smyx,0.95)]))
a<-table.row.end(a)
}
}
a<-table.end(a)
table.save(a,file='mytable.tab')
 





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Software written by Ed van Stee & Patrick Wessa


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