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(7.3,7.6,7.5,7.6,7.9,7.9,8.1,8.2,8,7.5,6.8,6.5,6.6,7.6,8,8.1,7.7,7.5,7.6,7.8,7.8,7.8,7.5,7.5,7.1,7.5,7.5,7.6,7.7,7.7,7.9,8.1,8.2,8.2,8.2,7.9,7.3,6.9,6.6,6.7,6.9,7,7.1,7.2,7.1,6.9,7,6.8,6.4,6.7,6.6,6.4,6.3,6.2,6.5,6.8,6.8,6.4,6.1,5.8,6.1,7.2,7.3,6.9,6.1,5.8,6.2,7.1,7.7,7.9,7.7,7.4,7.5)
> 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] 73
> (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] 7 6 6 6 6 6 6 6 6 6 6 6
> arr
      [,1] [,2] [,3] [,4] [,5] [,6] [,7]
 [1,]  7.3  6.6  7.1  7.3  6.4  6.1  7.5
 [2,]  7.6  7.6  7.5  6.9  6.7  7.2   NA
 [3,]  7.5  8.0  7.5  6.6  6.6  7.3   NA
 [4,]  7.6  8.1  7.6  6.7  6.4  6.9   NA
 [5,]  7.9  7.7  7.7  6.9  6.3  6.1   NA
 [6,]  7.9  7.5  7.7  7.0  6.2  5.8   NA
 [7,]  8.1  7.6  7.9  7.1  6.5  6.2   NA
 [8,]  8.2  7.8  8.1  7.2  6.8  7.1   NA
 [9,]  8.0  7.8  8.2  7.1  6.8  7.7   NA
[10,]  7.5  7.8  8.2  6.9  6.4  7.9   NA
[11,]  6.8  7.5  8.2  7.0  6.1  7.7   NA
[12,]  6.5  7.5  7.9  6.8  5.8  7.4   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/1ug4x1257423242.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/20lph1257423242.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/3dflb1257423242.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/4qbdc1257423242.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,]  6.1 6.70  6.6 6.40  6.1 5.80 6.20  6.8 6.80  6.40  6.10   5.8
[2,]  6.5 6.90  6.6 6.70  6.3 6.20 6.50  7.1 7.10  6.90  6.80   6.5
[3,]  7.1 7.35  7.4 7.25  7.3 7.25 7.35  7.5 7.75  7.65  7.25   7.1
[4,]  7.3 7.60  7.5 7.60  7.7 7.70 7.90  8.1 8.00  7.90  7.70   7.5
[5,]  7.5 7.60  8.0 8.10  7.9 7.90 8.10  8.2 8.20  8.20  8.20   7.9

$n
 [1] 7 6 6 6 6 6 6 6 6 6 6 6

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 6.622253 6.898477 6.819471 6.669471 6.396955 6.282452 6.446955 6.854968
[2,] 7.577747 7.801523 7.980529 7.830529 8.203045 8.217548 8.253045 8.145032
         [,9]    [,10]    [,11]    [,12]
[1,] 7.169471 7.004968 6.669471 6.454968
[2,] 8.330529 8.295032 7.830529 7.745032

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(6.1, 6.5, 7.1, 7.3, 7.5, 6.7, 6.9, 7.35, 7.6,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/5aypr1257423242.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,] 6.80 7.50 7.10 6.60 5.80 5.80  7.5
[2,] 7.40 7.50 7.55 6.85 6.25 6.15  7.5
[3,] 7.60 7.65 7.80 6.95 6.40 7.15  7.5
[4,] 7.95 7.80 8.15 7.10 6.65 7.55  7.5
[5,] 8.20 8.10 8.20 7.30 6.80 7.90  7.5

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]    [,6] [,7]
[1,] 7.349141 7.513168 7.526336 6.835973 6.217557 6.51145  7.5
[2,] 7.850859 7.786832 8.073664 7.064027 6.582443 7.78855  7.5

$out
[1] 6.5 6.6

$group
[1] 1 2

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

Warning message:
In bxp(list(stats = c(6.8, 7.4, 7.6, 7.95, 8.2, 7.5, 7.5, 7.65,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/6a2271257423242.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,] 0.3834058 0.90 0.6000
[2,] 0.5472230 1.40 0.7625
[3,] 0.6634270 1.75 0.8375
[4,] 0.7682230 2.00 1.0375
[5,] 0.8518607 2.10 1.2500

$n
[1] 12 12 12

$conf
          [,1]     [,2]      [,3]
[1,] 0.5626275 1.476336 0.7120707
[2,] 0.7642266 2.023664 0.9629293

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(0.383405790253616, 0.547223025266027, 0.663427022698722,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> system("convert tmp/1ug4x1257423242.ps tmp/1ug4x1257423242.png")
> system("convert tmp/20lph1257423242.ps tmp/20lph1257423242.png")
> system("convert tmp/3dflb1257423242.ps tmp/3dflb1257423242.png")
> system("convert tmp/4qbdc1257423242.ps tmp/4qbdc1257423242.png")
> system("convert tmp/5aypr1257423242.ps tmp/5aypr1257423242.png")
> system("convert tmp/6a2271257423242.ps tmp/6a2271257423242.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.610   1.244   1.807