R version 2.8.0 (2008-10-20)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> x <- c(278.1,283.3,287,287.9,279.7,273.2,272.6,274.8,277.2,277.5,278.7,279,280.1,280.8,280.1,270.5,260,258.2,260.1,262.2,263.4,264.7,267.4,266.8,265.2,262.5,255,252.8,249.6,254.2,259.4,260.8,261.6,257.2,249.8,235.2,227.4,223.1,221.6,218.5,220.1,222.1,222.9,222.8,222.1,209,201.7,204.5,208.7,213,218.6,221.9,224.6,226.8,229.6,231.4,229.1,232.7,236.6,242.2,251.5,261.5,266.4,280.9,294.4,308.8,328.8,348.2,365.9,387.5,395.9,395.8)
> par1 = '12'
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Prof. Dr. P. Wessa
> #To cite this work: AUTHOR(S), (YEAR), YOUR SOFTWARE TITLE (vNUMBER) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #Technical description: Write here your technical program description (don't use hard returns!)
> par1 <- as.numeric(par1)
> (n <- length(x))
[1] 72
> (np <- floor(n / par1))
[1] 6
> arr <- array(NA,dim=c(par1,np+1))
> ari <- array(0,dim=par1)
> j <- 0
> for (i in 1:n)
+ {
+ j = j + 1
+ ari[j] = ari[j] + 1
+ arr[j,ari[j]] <- x[i]
+ if (j == par1) j = 0
+ }
> ari
 [1] 6 6 6 6 6 6 6 6 6 6 6 6
> arr
       [,1]  [,2]  [,3]  [,4]  [,5]  [,6] [,7]
 [1,] 278.1 280.1 265.2 227.4 208.7 251.5   NA
 [2,] 283.3 280.8 262.5 223.1 213.0 261.5   NA
 [3,] 287.0 280.1 255.0 221.6 218.6 266.4   NA
 [4,] 287.9 270.5 252.8 218.5 221.9 280.9   NA
 [5,] 279.7 260.0 249.6 220.1 224.6 294.4   NA
 [6,] 273.2 258.2 254.2 222.1 226.8 308.8   NA
 [7,] 272.6 260.1 259.4 222.9 229.6 328.8   NA
 [8,] 274.8 262.2 260.8 222.8 231.4 348.2   NA
 [9,] 277.2 263.4 261.6 222.1 229.1 365.9   NA
[10,] 277.5 264.7 257.2 209.0 232.7 387.5   NA
[11,] 278.7 267.4 249.8 201.7 236.6 395.9   NA
[12,] 279.0 266.8 235.2 204.5 242.2 395.8   NA
> arr.sd <- array(NA,dim=par1)
> arr.range <- array(NA,dim=par1)
> arr.iqr <- array(NA,dim=par1)
> for (j in 1:par1)
+ {
+ arr.sd[j] <- sqrt(var(arr[j,],na.rm=TRUE))
+ arr.range[j] <- max(arr[j,],na.rm=TRUE) - min(arr[j,],na.rm=TRUE)
+ arr.iqr[j] <- quantile(arr[j,],0.75,na.rm=TRUE) - quantile(arr[j,],0.25,na.rm=TRUE)
+ }
> overall.sd <- sqrt(var(x))
> overall.range <- max(x) - min(x)
> overall.iqr <- quantile(x,0.75) - quantile(x,0.25)
> postscript(file="/var/www/html/freestat/rcomp/tmp/1x99j1275824766.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.sd,type='b',ylab='S.D.',main='Standard Deviation Plot',xlab='Periodic Index')
> mtext(paste('# blocks = ',np))
> abline(overall.sd,0)
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/2q0841275824766.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.range,type='b',ylab='range',main='Range Plot',xlab='Periodic Index')
> mtext(paste('# blocks = ',np))
> abline(overall.range,0)
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/3q0841275824766.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.iqr,type='b',ylab='IQR',main='Interquartile Range Plot',xlab='Periodic Index')
> mtext(paste('# blocks = ',np))
> abline(overall.iqr,0)
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/4js7p1275824766.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> z <- data.frame(t(arr))
> names(z) <- c(1:par1)
> (boxplot(z,notch=TRUE,col='grey',xlab='Periodic Index',ylab='Value',main='Notched Box Plots - Periodic Subseries'))
$stats
       [,1]  [,2]  [,3]   [,4]  [,5]  [,6]   [,7]  [,8]  [,9]  [,10] [,11]
[1,] 208.70 213.0 218.6 218.50 220.1 222.1 222.90 222.8 222.1 209.00 201.7
[2,] 227.40 223.1 221.6 221.90 224.6 226.8 229.60 231.4 229.1 232.70 236.6
[3,] 258.35 262.0 260.7 261.65 254.8 256.2 259.75 261.5 262.5 260.95 258.6
[4,] 278.10 280.8 280.1 280.90 279.7 273.2 272.60 274.8 277.2 277.50 278.7
[5,] 280.10 283.3 287.0 287.90 294.4 308.8 328.80 274.8 277.2 277.50 278.7
     [,12]
[1,] 204.5
[2,] 235.2
[3,] 254.5
[4,] 279.0
[5,] 279.0

$n
 [1] 6 6 6 6 6 6 6 6 6 6 6 6

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 225.6469 224.7816 222.9656 223.5931 219.2587 226.2705 232.0136 233.5056
[2,] 291.0531 299.2184 298.4344 299.7069 290.3413 286.1295 287.4864 289.4944
         [,9]    [,10]    [,11]    [,12]
[1,] 231.4739 232.0526 231.4441 226.2476
[2,] 293.5261 289.8474 285.7559 282.7524

$out
[1] 348.2 365.9 387.5 395.9 395.8

$group
[1]  8  9 10 11 12

$names
 [1] "1"  "2"  "3"  "4"  "5"  "6"  "7"  "8"  "9"  "10" "11" "12"

Warning message:
In bxp(list(stats = c(208.7, 227.4, 258.35, 278.1, 280.1, 213, 223.1,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/5js7p1275824766.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> z <- data.frame(arr)
> names(z) <- c(1:np)
> (boxplot(z,notch=TRUE,col='grey',xlab='Block Index',ylab='Value',main='Notched Box Plots - Sequential Blocks'))
$stats
      [,1]   [,2]  [,3]   [,4]   [,5]   [,6] [,7]
[1,] 272.6 258.20 249.6 201.70 208.70 251.50   NA
[2,] 276.0 261.15 251.3 213.75 220.25 273.65   NA
[3,] 278.4 265.75 256.1 221.85 227.95 318.80   NA
[4,] 281.5 275.30 261.2 222.85 232.05 376.70   NA
[5,] 287.9 280.80 265.2 227.40 242.20 395.90   NA

$n
[1] 12 12 12 12 12 12  0

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6] [,7]
[1,] 275.8914 259.2961 251.5845 217.6994 222.5679 271.7982   NA
[2,] 280.9086 272.2039 260.6155 226.0006 233.3321 365.8018   NA

$out
[1] 235.2

$group
[1] 3

$names
[1] "1" "2" "3" "4" "5" "6" NA 

Warning message:
In bxp(list(stats = c(272.6, 276, 278.4, 281.5, 287.9, 258.2, 261.15,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/6js7p1275824766.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> z <- data.frame(cbind(arr.sd,arr.range,arr.iqr))
> names(z) <- list('S.D.','Range','IQR')
> (boxplot(z,notch=TRUE,col='grey',ylab='Overall Variability',main='Notched Box Plots'))
$stats
         [,1]   [,2]    [,3]
[1,] 28.72349  68.40 32.4250
[2,] 29.49471  70.85 35.6375
[3,] 34.86993  96.30 37.7625
[4,] 56.76362 161.15 43.7250
[5,] 66.61677 194.20 48.6750

$n
[1] 12 12 12

$conf
         [,1]      [,2]     [,3]
[1,] 22.43239  55.11356 34.07374
[2,] 47.30746 137.48644 41.45126

$out
numeric(0)

$group
numeric(0)

$names
[1] "S.D."  "Range" "IQR"  

Warning message:
In bxp(list(stats = c(28.7234863250732, 29.4947080776645, 34.8699259766728,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1x99j1275824766.ps tmp/1x99j1275824766.png",intern=TRUE))
character(0)
> try(system("convert tmp/2q0841275824766.ps tmp/2q0841275824766.png",intern=TRUE))
character(0)
> try(system("convert tmp/3q0841275824766.ps tmp/3q0841275824766.png",intern=TRUE))
character(0)
> try(system("convert tmp/4js7p1275824766.ps tmp/4js7p1275824766.png",intern=TRUE))
character(0)
> try(system("convert tmp/5js7p1275824766.ps tmp/5js7p1275824766.png",intern=TRUE))
character(0)
> try(system("convert tmp/6js7p1275824766.ps tmp/6js7p1275824766.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  1.599   1.234   1.779