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Q6 Error Component

*The author of this computation has been verified*
R Software Module: rwasp_centraltendency.wasp (opens new window with default values)
Title produced by software: Central Tendency
Date of computation: Sat, 25 Oct 2008 06:52:51 -0600
 
Cite this page as follows:
Statistical Computations at FreeStatistics.org, Office for Research Development and Education, URL http://www.freestatistics.org/blog/date/2008/Oct/25/t1224939839mzu3hb0odsr96t0.htm/, Retrieved Sat, 25 Oct 2008 13:04:01 +0000
 
BibTeX entries for LaTeX users:
@Manual{KEY,
    author = {{YOUR NAME}},
    publisher = {Office for Research Development and Education},
    title = {Statistical Computations at FreeStatistics.org, URL http://www.freestatistics.org/blog/date/2008/Oct/25/t1224939839mzu3hb0odsr96t0.htm/},
    year = {2008},
}
@Manual{R,
    title = {R: A Language and Environment for Statistical Computing},
    author = {{R Development Core Team}},
    organization = {R Foundation for Statistical Computing},
    address = {Vienna, Austria},
    year = {2008},
    note = {{ISBN} 3-900051-07-0},
    url = {http://www.R-project.org},
}
 
Family? (F = Feedback message, R = changed R code, M = changed R Module, P = changed Parameters, D = changed Data)
 
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Dataseries X:
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0.989130435 0.919087137 0.925417076 0.925612053 1.066666667 0.851108765 1.030693069 0.989031079 0.913000978 0.792723264 0.978170478 0.987513007 0.909433962 0.883608147 0.82745098 0.8252149 1.023255814 0.815418024 1.026192703 0.914742451 0.807276303 0.739130435 0.98973306 0.972164948 0.853889943 0.856864654 0.775739042 0.789473684 0.931350114 0.73971079 0.885245902 0.842435094 0.818458418 0.72755418 0.923238696 0.922680412 0.883762201 0.818270165 0.771047228 0.825852783 0.924485126 0.755165289 0.874671341 0.815956482 0.799807507 0.712598425 0.832980973 0.910323253 0.869149952 0.779182879 0.750254842 0.75856014 0.920889988 0.743991641 0.816254417 0.769593957 0.784007353 0.683284457 0.850505051 0.900695134 0.868398268 0.788480636 0.771610555 0.810645724 0.955503513 0.756218905 0.859756098 0.764806867 0.785651019 0.657843137 0.883018868 0.921177588 0.848484848 0.754948162 0.738334858 0.762798635 0.881081081 0.706333973 0.808 0.794934641 0.744042365 0.656 0.788617886 0.802304965 0.750455373
 
Output produced by software:


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' @ 72.249.76.132


Central Tendency - Ungrouped Data
MeasureValueS.E.Value/S.E.
Arithmetic Mean0.8421077083882350.0098164679896103585.7852039327703
Geometric Mean0.837357416906186
Harmonic Mean0.83266295570438
Quadratic Mean0.846900164249206
Winsorized Mean ( 1 / 28 )0.841706173552940.0097048422288962486.7305365404865
Winsorized Mean ( 2 / 28 )0.8421989018823530.0095535859423247588.155265150356
Winsorized Mean ( 3 / 28 )0.8429087593058820.009378683096282889.8749590590139
Winsorized Mean ( 4 / 28 )0.8416260156823530.0089921696146044993.5954337777881
Winsorized Mean ( 5 / 28 )0.8424703174470590.0088419367213993695.2811973205035
Winsorized Mean ( 6 / 28 )0.8432242931176470.0087272058005022596.6201912035946
Winsorized Mean ( 7 / 28 )0.8431647935294120.008693061937198696.9928432145887
Winsorized Mean ( 8 / 28 )0.8423401183294120.0085148154664689798.9264091096884
Winsorized Mean ( 9 / 28 )0.8421575052588240.0083310380123174101.08674381436
Winsorized Mean ( 10 / 28 )0.8402033039647060.00797922620097078105.298845126421
Winsorized Mean ( 11 / 28 )0.8378815375882350.00735802224202543113.873199893671
Winsorized Mean ( 12 / 28 )0.8370997686470590.0072337245071312115.721820456644
Winsorized Mean ( 13 / 28 )0.8377570810705880.00713288692333792117.449931573926
Winsorized Mean ( 14 / 28 )0.8376393455176470.00710554887216891117.885241603013
Winsorized Mean ( 15 / 28 )0.8376053195176470.00704801232232542118.842771722239
Winsorized Mean ( 16 / 28 )0.837940933823530.00697265172548221120.175360367017
Winsorized Mean ( 17 / 28 )0.838488068023530.00681570762454625123.022892737326
Winsorized Mean ( 18 / 28 )0.8388524371529410.00675102677608095124.255534006326
Winsorized Mean ( 19 / 28 )0.8395195023411770.00655492551220944128.074606000855
Winsorized Mean ( 20 / 28 )0.83883916940.00636508841974723131.787512455846
Winsorized Mean ( 21 / 28 )0.8385480980352940.00628657328546115133.387150671510
Winsorized Mean ( 22 / 28 )0.838923589376470.0060549449463704138.551811256246
Winsorized Mean ( 23 / 28 )0.8396148194705880.00590647636742293142.151558262634
Winsorized Mean ( 24 / 28 )0.8385095901058820.00539861780153642155.319309669828
Winsorized Mean ( 25 / 28 )0.8344491295176470.00473697236603372176.156638679388
Winsorized Mean ( 26 / 28 )0.8348608214705880.00457378885571785182.531561426781
Winsorized Mean ( 27 / 28 )0.8348554837294120.00456230047668881182.990026192954
Winsorized Mean ( 28 / 28 )0.834943278223530.00450367068177114185.391725377037
Trimmed Mean ( 1 / 28 )0.8416444403132530.0094122883335861389.4197468760057
Trimmed Mean ( 2 / 28 )0.8415796585185190.0090729967637143292.7565258134173
Trimmed Mean ( 3 / 28 )0.8412465212658230.0087731772779345195.888467155639
Trimmed Mean ( 4 / 28 )0.8406348752337660.0085011676658617298.8846365905142
Trimmed Mean ( 5 / 28 )0.8403540521066670.00832118382233509100.989723343336
Trimmed Mean ( 6 / 28 )0.8398612231917810.00815351310742999103.006055442095
Trimmed Mean ( 7 / 28 )0.8391901881126760.00798422090071067105.106083429879
Trimmed Mean ( 8 / 28 )0.8384907233913040.00779070194091644107.627108539166
Trimmed Mean ( 9 / 28 )0.8378802782985070.00760109367746637110.231542176940
Trimmed Mean ( 10 / 28 )0.8372588008769230.0074132106970771112.941454801364
Trimmed Mean ( 11 / 28 )0.8368615266507940.00726103558752261115.253742605099
Trimmed Mean ( 12 / 28 )0.8367323151311480.00719564215913882116.283202614301
Trimmed Mean ( 13 / 28 )0.8366881999491530.00713404594056157117.281022146500
Trimmed Mean ( 14 / 28 )0.8365655887543860.0070712064037152118.305921365109
Trimmed Mean ( 15 / 28 )0.8364470571636360.00699325383839924119.607707154971
Trimmed Mean ( 16 / 28 )0.8363232177924530.00690174332686127121.175647685639
Trimmed Mean ( 17 / 28 )0.8361547057058820.00679600120330889123.036279819781
Trimmed Mean ( 18 / 28 )0.8359166075102040.00668663827293157125.012984610534
Trimmed Mean ( 19 / 28 )0.8356216364468090.0065543843528166127.490484455297
Trimmed Mean ( 20 / 28 )0.8352341293111110.00641756269071227130.148183907871
Trimmed Mean ( 21 / 28 )0.8348778172093020.00627443303220839133.060280175698
Trimmed Mean ( 22 / 28 )0.8345154782195120.00609818901770015136.846443394475
Trimmed Mean ( 23 / 28 )0.834078777230770.00591090197227817141.108545048210
Trimmed Mean ( 24 / 28 )0.833525823540540.00568676674436393146.572887725109
Trimmed Mean ( 25 / 28 )0.8330215138285710.00550807445774304151.236429394585
Trimmed Mean ( 26 / 28 )0.8328744261515150.00542957736894405153.395811415336
Trimmed Mean ( 27 / 28 )0.8326649427741940.00534502815639359155.783078855849
Trimmed Mean ( 28 / 28 )0.8324271445862070.00520899184842927159.805806729611
Median0.825852783
Midrange0.8613333335
Midmean - Weighted Average at Xnp0.833017741952381
Midmean - Weighted Average at X(n+1)p0.834877817209302
Midmean - Empirical Distribution Function0.834877817209302
Midmean - Empirical Distribution Function - Averaging0.834877817209302
Midmean - Empirical Distribution Function - Interpolation0.834877817209302
Midmean - Closest Observation0.833427122
Midmean - True Basic - Statistics Graphics Toolkit0.834877817209302
Midmean - MS Excel (old versions)0.834877817209302
Number of observations85
 
Charts produced by software:
http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Oct/25/t1224939839mzu3hb0odsr96t0/1juim1224939169.png (open in new window)
http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Oct/25/t1224939839mzu3hb0odsr96t0/1juim1224939169.ps (open in new window)


http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Oct/25/t1224939839mzu3hb0odsr96t0/2tbxy1224939169.png (open in new window)
http://127.0.0.1/wessadotnet/public_html/freestatisticsdotorg/blog/date/2008/Oct/25/t1224939839mzu3hb0odsr96t0/2tbxy1224939169.ps (open in new window)


 
Parameters (Session):
 
Parameters (R input):
 
R code (references can be found in the software module):
geomean <- function(x) {
return(exp(mean(log(x))))
}
harmean <- function(x) {
return(1/mean(1/x))
}
quamean <- function(x) {
return(sqrt(mean(x*x)))
}
winmean <- function(x) {
x <-sort(x[!is.na(x)])
n<-length(x)
denom <- 3
nodenom <- n/denom
if (nodenom>40) denom <- n/40
sqrtn = sqrt(n)
roundnodenom = floor(nodenom)
win <- array(NA,dim=c(roundnodenom,2))
for (j in 1:roundnodenom) {
win[j,1] <- (j*x[j+1]+sum(x[(j+1):(n-j)])+j*x[n-j])/n
win[j,2] <- sd(c(rep(x[j+1],j),x[(j+1):(n-j)],rep(x[n-j],j)))/sqrtn
}
return(win)
}
trimean <- function(x) {
x <-sort(x[!is.na(x)])
n<-length(x)
denom <- 3
nodenom <- n/denom
if (nodenom>40) denom <- n/40
sqrtn = sqrt(n)
roundnodenom = floor(nodenom)
tri <- array(NA,dim=c(roundnodenom,2))
for (j in 1:roundnodenom) {
tri[j,1] <- mean(x,trim=j/n)
tri[j,2] <- sd(x[(j+1):(n-j)]) / sqrt(n-j*2)
}
return(tri)
}
midrange <- function(x) {
return((max(x)+min(x))/2)
}
q1 <- function(data,n,p,i,f) {
np <- n*p;
i <<- floor(np)
f <<- np - i
qvalue <- (1-f)*data[i] + f*data[i+1]
}
q2 <- function(data,n,p,i,f) {
np <- (n+1)*p
i <<- floor(np)
f <<- np - i
qvalue <- (1-f)*data[i] + f*data[i+1]
}
q3 <- function(data,n,p,i,f) {
np <- n*p
i <<- floor(np)
f <<- np - i
if (f==0) {
qvalue <- data[i]
} else {
qvalue <- data[i+1]
}
}
q4 <- function(data,n,p,i,f) {
np <- n*p
i <<- floor(np)
f <<- np - i
if (f==0) {
qvalue <- (data[i]+data[i+1])/2
} else {
qvalue <- data[i+1]
}
}
q5 <- function(data,n,p,i,f) {
np <- (n-1)*p
i <<- floor(np)
f <<- np - i
if (f==0) {
qvalue <- data[i+1]
} else {
qvalue <- data[i+1] + f*(data[i+2]-data[i+1])
}
}
q6 <- function(data,n,p,i,f) {
np <- n*p+0.5
i <<- floor(np)
f <<- np - i
qvalue <- data[i]
}
q7 <- function(data,n,p,i,f) {
np <- (n+1)*p
i <<- floor(np)
f <<- np - i
if (f==0) {
qvalue <- data[i]
} else {
qvalue <- f*data[i] + (1-f)*data[i+1]
}
}
q8 <- function(data,n,p,i,f) {
np <- (n+1)*p
i <<- floor(np)
f <<- np - i
if (f==0) {
qvalue <- data[i]
} else {
if (f == 0.5) {
qvalue <- (data[i]+data[i+1])/2
} else {
if (f < 0.5) {
qvalue <- data[i]
} else {
qvalue <- data[i+1]
}
}
}
}
midmean <- function(x,def) {
x <-sort(x[!is.na(x)])
n<-length(x)
if (def==1) {
qvalue1 <- q1(x,n,0.25,i,f)
qvalue3 <- q1(x,n,0.75,i,f)
}
if (def==2) {
qvalue1 <- q2(x,n,0.25,i,f)
qvalue3 <- q2(x,n,0.75,i,f)
}
if (def==3) {
qvalue1 <- q3(x,n,0.25,i,f)
qvalue3 <- q3(x,n,0.75,i,f)
}
if (def==4) {
qvalue1 <- q4(x,n,0.25,i,f)
qvalue3 <- q4(x,n,0.75,i,f)
}
if (def==5) {
qvalue1 <- q5(x,n,0.25,i,f)
qvalue3 <- q5(x,n,0.75,i,f)
}
if (def==6) {
qvalue1 <- q6(x,n,0.25,i,f)
qvalue3 <- q6(x,n,0.75,i,f)
}
if (def==7) {
qvalue1 <- q7(x,n,0.25,i,f)
qvalue3 <- q7(x,n,0.75,i,f)
}
if (def==8) {
qvalue1 <- q8(x,n,0.25,i,f)
qvalue3 <- q8(x,n,0.75,i,f)
}
midm <- 0
myn <- 0
roundno4 <- round(n/4)
round3no4 <- round(3*n/4)
for (i in 1:n) {
if ((x[i]>=qvalue1) & (x[i]<=qvalue3)){
midm = midm + x[i]
myn = myn + 1
}
}
midm = midm / myn
return(midm)
}
(arm <- mean(x))
sqrtn <- sqrt(length(x))
(armse <- sd(x) / sqrtn)
(armose <- arm / armse)
(geo <- geomean(x))
(har <- harmean(x))
(qua <- quamean(x))
(win <- winmean(x))
(tri <- trimean(x))
(midr <- midrange(x))
midm <- array(NA,dim=8)
for (j in 1:8) midm[j] <- midmean(x,j)
midm
bitmap(file='test1.png')
lb <- win[,1] - 2*win[,2]
ub <- win[,1] + 2*win[,2]
if ((ylimmin == '') | (ylimmax == '')) plot(win[,1],type='b',main=main, xlab='j', pch=19, ylab='Winsorized Mean(j/n)', ylim=c(min(lb),max(ub))) else plot(win[,1],type='l',main=main, xlab='j', pch=19, ylab='Winsorized Mean(j/n)', ylim=c(ylimmin,ylimmax))
lines(ub,lty=3)
lines(lb,lty=3)
grid()
dev.off()
bitmap(file='test2.png')
lb <- tri[,1] - 2*tri[,2]
ub <- tri[,1] + 2*tri[,2]
if ((ylimmin == '') | (ylimmax == '')) plot(tri[,1],type='b',main=main, xlab='j', pch=19, ylab='Trimmed Mean(j/n)', ylim=c(min(lb),max(ub))) else plot(tri[,1],type='l',main=main, xlab='j', pch=19, ylab='Trimmed Mean(j/n)', ylim=c(ylimmin,ylimmax))
lines(ub,lty=3)
lines(lb,lty=3)
grid()
dev.off()
load(file='createtable')
a<-table.start()
a<-table.row.start(a)
a<-table.element(a,'Central Tendency - Ungrouped Data',4,TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Measure',header=TRUE)
a<-table.element(a,'Value',header=TRUE)
a<-table.element(a,'S.E.',header=TRUE)
a<-table.element(a,'Value/S.E.',header=TRUE)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('http://www.xycoon.com/arithmetic_mean.htm', 'Arithmetic Mean', 'click to view the definition of the Arithmetic Mean'),header=TRUE)
a<-table.element(a,arm)
a<-table.element(a,hyperlink('http://www.xycoon.com/arithmetic_mean_standard_error.htm', armse, 'click to view the definition of the Standard Error of the Arithmetic Mean'))
a<-table.element(a,armose)
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('http://www.xycoon.com/geometric_mean.htm', 'Geometric Mean', 'click to view the definition of the Geometric Mean'),header=TRUE)
a<-table.element(a,geo)
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('http://www.xycoon.com/harmonic_mean.htm', 'Harmonic Mean', 'click to view the definition of the Harmonic Mean'),header=TRUE)
a<-table.element(a,har)
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('http://www.xycoon.com/quadratic_mean.htm', 'Quadratic Mean', 'click to view the definition of the Quadratic Mean'),header=TRUE)
a<-table.element(a,qua)
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
for (j in 1:length(win[,1])) {
a<-table.row.start(a)
mylabel <- paste('Winsorized Mean (',j)
mylabel <- paste(mylabel,'/')
mylabel <- paste(mylabel,length(win[,1]))
mylabel <- paste(mylabel,')')
a<-table.element(a,hyperlink('http://www.xycoon.com/winsorized_mean.htm', mylabel, 'click to view the definition of the Winsorized Mean'),header=TRUE)
a<-table.element(a,win[j,1])
a<-table.element(a,win[j,2])
a<-table.element(a,win[j,1]/win[j,2])
a<-table.row.end(a)
}
for (j in 1:length(tri[,1])) {
a<-table.row.start(a)
mylabel <- paste('Trimmed Mean (',j)
mylabel <- paste(mylabel,'/')
mylabel <- paste(mylabel,length(tri[,1]))
mylabel <- paste(mylabel,')')
a<-table.element(a,hyperlink('http://www.xycoon.com/arithmetic_mean.htm', mylabel, 'click to view the definition of the Trimmed Mean'),header=TRUE)
a<-table.element(a,tri[j,1])
a<-table.element(a,tri[j,2])
a<-table.element(a,tri[j,1]/tri[j,2])
a<-table.row.end(a)
}
a<-table.row.start(a)
a<-table.element(a,hyperlink('http://www.xycoon.com/median_1.htm', 'Median', 'click to view the definition of the Median'),header=TRUE)
a<-table.element(a,median(x))
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,hyperlink('http://www.xycoon.com/midrange.htm', 'Midrange', 'click to view the definition of the Midrange'),header=TRUE)
a<-table.element(a,midr)
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
mymid <- hyperlink('http://www.xycoon.com/midmean.htm', 'Midmean', 'click to view the definition of the Midmean')
mylabel <- paste(mymid,hyperlink('http://www.xycoon.com/method_1.htm','Weighted Average at Xnp',''),sep=' - ')
a<-table.element(a,mylabel,header=TRUE)
a<-table.element(a,midm[1])
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
mymid <- hyperlink('http://www.xycoon.com/midmean.htm', 'Midmean', 'click to view the definition of the Midmean')
mylabel <- paste(mymid,hyperlink('http://www.xycoon.com/method_2.htm','Weighted Average at X(n+1)p',''),sep=' - ')
a<-table.element(a,mylabel,header=TRUE)
a<-table.element(a,midm[2])
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
mymid <- hyperlink('http://www.xycoon.com/midmean.htm', 'Midmean', 'click to view the definition of the Midmean')
mylabel <- paste(mymid,hyperlink('http://www.xycoon.com/method_3.htm','Empirical Distribution Function',''),sep=' - ')
a<-table.element(a,mylabel,header=TRUE)
a<-table.element(a,midm[3])
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
mymid <- hyperlink('http://www.xycoon.com/midmean.htm', 'Midmean', 'click to view the definition of the Midmean')
mylabel <- paste(mymid,hyperlink('http://www.xycoon.com/method_4.htm','Empirical Distribution Function - Averaging',''),sep=' - ')
a<-table.element(a,mylabel,header=TRUE)
a<-table.element(a,midm[4])
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
mymid <- hyperlink('http://www.xycoon.com/midmean.htm', 'Midmean', 'click to view the definition of the Midmean')
mylabel <- paste(mymid,hyperlink('http://www.xycoon.com/method_5.htm','Empirical Distribution Function - Interpolation',''),sep=' - ')
a<-table.element(a,mylabel,header=TRUE)
a<-table.element(a,midm[5])
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
mymid <- hyperlink('http://www.xycoon.com/midmean.htm', 'Midmean', 'click to view the definition of the Midmean')
mylabel <- paste(mymid,hyperlink('http://www.xycoon.com/method_6.htm','Closest Observation',''),sep=' - ')
a<-table.element(a,mylabel,header=TRUE)
a<-table.element(a,midm[6])
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
mymid <- hyperlink('http://www.xycoon.com/midmean.htm', 'Midmean', 'click to view the definition of the Midmean')
mylabel <- paste(mymid,hyperlink('http://www.xycoon.com/method_7.htm','True Basic - Statistics Graphics Toolkit',''),sep=' - ')
a<-table.element(a,mylabel,header=TRUE)
a<-table.element(a,midm[7])
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
mymid <- hyperlink('http://www.xycoon.com/midmean.htm', 'Midmean', 'click to view the definition of the Midmean')
mylabel <- paste(mymid,hyperlink('http://www.xycoon.com/method_8.htm','MS Excel (old versions)',''),sep=' - ')
a<-table.element(a,mylabel,header=TRUE)
a<-table.element(a,midm[8])
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.row.start(a)
a<-table.element(a,'Number of observations',header=TRUE)
a<-table.element(a,length(x))
a<-table.element(a,'')
a<-table.element(a,'')
a<-table.row.end(a)
a<-table.end(a)
table.save(a,file='mytable.tab')
 





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