R version 2.13.0 (2011-04-13)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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> x <- c(18.94,18.97,19,19.08,19.18,19.24,19.23,19.25,19.3,19.33,19.35,19.35,19.31,19.47,19.7,19.76,19.9,19.97,20.1,20.26,20.44,20.43,20.57,20.6,20.69,20.93,20.98,21.11,21.14,21.16,21.32,21.32,21.48,21.58,21.74,21.75,21.81,21.89,22.21,22.37,22.47,22.51,22.55,22.61,22.58,22.85,22.93,22.98,23.01,23.11,23.18,23.18,23.21,23.22,23.12,23.15,23.16,23.21,23.21,23.22,23.25,23.39,23.41,23.45,23.46,23.44,23.54,23.62,23.86,24.07,24.13,24.12)
> 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,] 18.94 19.31 20.69 21.81 23.01 23.25   NA
 [2,] 18.97 19.47 20.93 21.89 23.11 23.39   NA
 [3,] 19.00 19.70 20.98 22.21 23.18 23.41   NA
 [4,] 19.08 19.76 21.11 22.37 23.18 23.45   NA
 [5,] 19.18 19.90 21.14 22.47 23.21 23.46   NA
 [6,] 19.24 19.97 21.16 22.51 23.22 23.44   NA
 [7,] 19.23 20.10 21.32 22.55 23.12 23.54   NA
 [8,] 19.25 20.26 21.32 22.61 23.15 23.62   NA
 [9,] 19.30 20.44 21.48 22.58 23.16 23.86   NA
[10,] 19.33 20.43 21.58 22.85 23.21 24.07   NA
[11,] 19.35 20.57 21.74 22.93 23.21 24.13   NA
[12,] 19.35 20.60 21.75 22.98 23.22 24.12   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/wessaorg/rcomp/tmp/1sy591322505378.ps",horizontal=F,onefile=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/wessaorg/rcomp/tmp/2g17j1322505378.ps",horizontal=F,onefile=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/wessaorg/rcomp/tmp/3tfm11322505378.ps",horizontal=F,onefile=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/wessaorg/rcomp/tmp/4ht6l1322505378.ps",horizontal=F,onefile=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,] 18.94 18.97 19.000 19.08 19.180 19.240 19.230 19.250 19.30 19.330 19.350
[2,] 19.31 19.47 19.700 19.76 19.900 19.970 20.100 20.260 20.44 20.430 20.570
[3,] 21.25 21.41 21.595 21.74 21.805 21.835 21.935 21.965 22.03 22.215 22.335
[4,] 23.01 23.11 23.180 23.18 23.210 23.220 23.120 23.150 23.16 23.210 23.210
[5,] 23.25 23.39 23.410 23.45 23.460 23.440 23.540 23.620 23.86 24.070 24.130
      [,12]
[1,] 19.350
[2,] 20.600
[3,] 22.365
[4,] 23.220
[5,] 24.120

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]   [,7]     [,8]
[1,] 18.86338 19.06208 19.35029 19.53399 19.66994 19.73865 19.987 20.10086
[2,] 23.63662 23.75792 23.83971 23.94601 23.94006 23.93135 23.883 23.82914
         [,9]    [,10]    [,11]    [,12]
[1,] 20.27551 20.42181 20.63211 20.67502
[2,] 23.78449 24.00819 24.03789 24.05498

$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(18.94, 19.31, 21.25, 23.01, 23.25, 18.97,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/56kv91322505378.ps",horizontal=F,onefile=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,] 18.940 19.310 20.690 21.81 23.110 23.250   NA
[2,] 19.040 19.730 21.045 22.29 23.135 23.425   NA
[3,] 19.235 20.035 21.240 22.53 23.180 23.500   NA
[4,] 19.315 20.435 21.530 22.73 23.210 23.965   NA
[5,] 19.350 20.600 21.750 22.98 23.220 24.130   NA

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]    [,6] [,7]
[1,] 19.10957 19.71344 21.01879 22.32931 23.14579 23.2537   NA
[2,] 19.36043 20.35656 21.46121 22.73069 23.21421 23.7463   NA

$out
[1] 23.01

$group
[1] 5

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

Warning message:
In bxp(list(stats = c(18.94, 19.04, 19.235, 19.315, 19.35, 19.31,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6j4en1322505378.ps",horizontal=F,onefile=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,] 1.722642 4.20 2.27250
[2,] 1.736869 4.31 2.35875
[3,] 1.788525 4.39 2.67375
[4,] 1.819529 4.65 2.89875
[5,] 1.838844 4.78 3.05500

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 1.750823 4.234924 2.427452
[2,] 1.826227 4.545076 2.920048

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(1.72264235018958, 1.73686888108259, 1.78852496629516,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1sy591322505378.ps tmp/1sy591322505378.png",intern=TRUE))
character(0)
> try(system("convert tmp/2g17j1322505378.ps tmp/2g17j1322505378.png",intern=TRUE))
character(0)
> try(system("convert tmp/3tfm11322505378.ps tmp/3tfm11322505378.png",intern=TRUE))
character(0)
> try(system("convert tmp/4ht6l1322505378.ps tmp/4ht6l1322505378.png",intern=TRUE))
character(0)
> try(system("convert tmp/56kv91322505378.ps tmp/56kv91322505378.png",intern=TRUE))
character(0)
> try(system("convert tmp/6j4en1322505378.ps tmp/6j4en1322505378.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  1.345   0.285   1.634