R version 2.7.0 (2008-04-22)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> x <- c(7.1,7.1,7.3,7.1,7.4,7.3,7.4,7.6,7.8,7.7,8,8.1,7.7,7.9,8.1,8.1,8.2,8.1,8.3,8.3,8.3,8.5,8.7,8.7,8.4,8.4,8.6,8.7,8.7,8.6,8,8.1,8.1,8.5,8.6,8.6,8.3,8.3,8.5,9.2,9.2,9,7.4,7.3,7.4,8.6,8.7,8.7,8.5,8.4,8.6,8.4,8.4,8.2,7.7,7.6,7.7,8.1,8.2,8.3,8.1,8,8.2,7.6,7.7,7.6,6.9,6.9,7,7.4,7.4,7.5)
> 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,]  7.1  7.7  8.4  8.3  8.5  8.1   NA
 [2,]  7.1  7.9  8.4  8.3  8.4  8.0   NA
 [3,]  7.3  8.1  8.6  8.5  8.6  8.2   NA
 [4,]  7.1  8.1  8.7  9.2  8.4  7.6   NA
 [5,]  7.4  8.2  8.7  9.2  8.4  7.7   NA
 [6,]  7.3  8.1  8.6  9.0  8.2  7.6   NA
 [7,]  7.4  8.3  8.0  7.4  7.7  6.9   NA
 [8,]  7.6  8.3  8.1  7.3  7.6  6.9   NA
 [9,]  7.8  8.3  8.1  7.4  7.7  7.0   NA
[10,]  7.7  8.5  8.5  8.6  8.1  7.4   NA
[11,]  8.0  8.7  8.6  8.7  8.2  7.4   NA
[12,]  8.1  8.7  8.6  8.7  8.3  7.5   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/rcomp/tmp/19nr91212333875.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/rcomp/tmp/2erbl1212333875.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/rcomp/tmp/3t6dy1212333875.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/rcomp/tmp/4751y1212333875.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] [,12]
[1,]  7.1 7.90 8.10 7.10  7.4 7.30 6.90  6.9 7.00   7.4   7.4  7.50
[2,]  7.7 7.90 8.10 7.60  7.7 7.60 7.40  7.3 7.40   7.7   8.0  8.10
[3,]  8.2 8.15 8.35 8.25  8.3 8.15 7.55  7.6 7.75   8.3   8.4  8.45
[4,]  8.4 8.40 8.60 8.70  8.7 8.60 8.00  8.1 8.10   8.5   8.7  8.70
[5,]  8.5 8.40 8.60 9.20  9.2 9.00 8.30  8.3 8.30   8.6   8.7  8.70

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]    [,7]     [,8]
[1,] 7.748477 7.827484 8.027484 7.540464 7.654968 7.504968 7.16298 7.083974
[2,] 8.651523 8.472516 8.672516 8.959536 8.945032 8.795032 7.93702 8.116026
         [,9]    [,10]    [,11]   [,12]
[1,] 7.298477 7.783974 7.948477 8.06298
[2,] 8.201523 8.816026 8.851523 8.83702

$out
[1] 7.1 7.3

$group
[1] 2 3

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

Warning message:
In bxp(list(stats = c(7.1, 7.7, 8.2, 8.4, 8.5, 7.9, 7.9, 8.15, 8.4,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/5fqgw1212333875.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,] 7.10 7.70 8.00 7.30 7.60 6.90   NA
[2,] 7.20 8.10 8.25 7.85 7.90 7.20   NA
[3,] 7.40 8.25 8.55 8.55 8.25 7.55   NA
[4,] 7.75 8.40 8.60 8.85 8.40 7.85   NA
[5,] 8.10 8.70 8.70 9.20 8.60 8.20   NA

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]    [,6] [,7]
[1,] 7.149141 8.113168 8.390363 8.093893 8.021947 7.25353   NA
[2,] 7.650859 8.386832 8.709637 9.006107 8.478053 7.84647   NA

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(7.1, 7.2, 7.4, 7.75, 8.1, 7.7, 8.1, 8.25,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/6ljul1212333875.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,] 0.4665476 1.20 0.4500
[2,] 0.4941299 1.30 0.5250
[3,] 0.5040789 1.35 0.5875
[4,] 0.5778781 1.55 0.7375
[5,] 0.6562520 1.80 0.9000

$n
[1] 12 12 12

$conf
          [,1]     [,2]      [,3]
[1,] 0.4658808 1.235973 0.4905773
[2,] 0.5422770 1.464027 0.6844227

$out
[1] 0.7574079 2.1000000

$group
[1] 1 2

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

Warning message:
In bxp(list(stats = c(0.466547603859099, 0.494129904873874, 0.504078943432159,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> system("convert tmp/19nr91212333875.ps tmp/19nr91212333875.png")
> system("convert tmp/2erbl1212333875.ps tmp/2erbl1212333875.png")
> system("convert tmp/3t6dy1212333875.ps tmp/3t6dy1212333875.png")
> system("convert tmp/4751y1212333875.ps tmp/4751y1212333875.png")
> system("convert tmp/5fqgw1212333875.ps tmp/5fqgw1212333875.png")
> system("convert tmp/6ljul1212333875.ps tmp/6ljul1212333875.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.286   0.814   6.249