R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: i686-pc-linux-gnu (32-bit)

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> x <- c(19.31,19.47,19.7,19.76,19.9,19.97,20.1,20.26,20.44,20.43,20.57,20.6,20.69,20.93,20.98,21.11,21.14,21.16,21.32,21.32,21.48,21.58,21.74,21.75,21.81,21.89,22.21,22.37,22.47,22.51,22.55,22.61,22.58,22.85,22.93,22.98,23.01,23.11,23.18,23.18,23.21,23.22,23.12,23.15,23.16,23.21,23.21,23.22,23.25,23.39,23.41,23.45,23.46,23.44,23.54,23.62,23.86,24.07,24.13,24.12,24.17,24.23,24.28,24.12,24.14,24.17,24.2,24.36,24.34,24.38,24.46,24.6,24.63,24.75,24.64,24.69,24.7,24.74,24.87,24.92,24.94,24.98,25.13,25.15)
> par1 = '12'
> par1 <- '12'
> #'GNU S' R Code compiled by R2WASP v. 1.2.291 ()
> #Author: root
> #To cite this work: Wessa P., (2012), Standard Deviation Plot (v1.0.2) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_sdplot.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #
> par1 <- as.numeric(par1)
> (n <- length(x))
[1] 84
> (np <- floor(n / par1))
[1] 7
> 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 7 7 7 7 7 7 7 7 7 7 7
> arr
       [,1]  [,2]  [,3]  [,4]  [,5]  [,6]  [,7] [,8]
 [1,] 19.31 20.69 21.81 23.01 23.25 24.17 24.63   NA
 [2,] 19.47 20.93 21.89 23.11 23.39 24.23 24.75   NA
 [3,] 19.70 20.98 22.21 23.18 23.41 24.28 24.64   NA
 [4,] 19.76 21.11 22.37 23.18 23.45 24.12 24.69   NA
 [5,] 19.90 21.14 22.47 23.21 23.46 24.14 24.70   NA
 [6,] 19.97 21.16 22.51 23.22 23.44 24.17 24.74   NA
 [7,] 20.10 21.32 22.55 23.12 23.54 24.20 24.87   NA
 [8,] 20.26 21.32 22.61 23.15 23.62 24.36 24.92   NA
 [9,] 20.44 21.48 22.58 23.16 23.86 24.34 24.94   NA
[10,] 20.43 21.58 22.85 23.21 24.07 24.38 24.98   NA
[11,] 20.57 21.74 22.93 23.21 24.13 24.46 25.13   NA
[12,] 20.60 21.75 22.98 23.22 24.12 24.60 25.15   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/fisher/rcomp/tmp/10pya1386174946.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/fisher/rcomp/tmp/2s3pw1386174946.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/fisher/rcomp/tmp/3pftx1386174946.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/fisher/rcomp/tmp/4tazg1386174946.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,] 19.31 19.47 19.700 19.760 19.900 19.970 20.100 20.260 20.44 20.430 20.570
[2,] 21.25 21.41 21.595 21.740 21.805 21.835 21.935 21.965 22.03 22.215 22.335
[3,] 23.01 23.11 23.180 23.180 23.210 23.220 23.120 23.150 23.16 23.210 23.210
[4,] 23.71 23.81 23.845 23.785 23.800 23.805 23.870 23.990 24.10 24.225 24.295
[5,] 24.63 24.75 24.640 24.690 24.700 24.740 24.870 24.920 24.94 24.980 25.130
      [,12]
[1,] 20.600
[2,] 22.365
[3,] 23.220
[4,] 24.360
[5,] 25.150

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]    [,8]
[1,] 21.54093 21.67676 21.83634 21.95876 22.01862 22.04355 21.96445 21.9407
[2,] 24.47907 24.54324 24.52366 24.40124 24.40138 24.39645 24.27555 24.3593
         [,9]    [,10]    [,11]    [,12]
[1,] 21.92383 22.00966 22.03952 22.02862
[2,] 24.39617 24.41034 24.38048 24.41138

$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(19.31, 21.25, 23.01, 23.71, 24.63, 19.47,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/fisher/rcomp/tmp/5sc1b1386174946.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] [,8]
[1,] 19.310 20.690 21.81 23.110 23.250 24.120 24.630   NA
[2,] 19.730 21.045 22.29 23.135 23.425 24.170 24.695   NA
[3,] 20.035 21.240 22.53 23.180 23.500 24.255 24.810   NA
[4,] 20.435 21.530 22.73 23.210 23.965 24.370 24.960   NA
[5,] 20.600 21.750 22.98 23.220 24.130 24.600 25.150   NA

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

$conf
         [,1]     [,2]     [,3]     [,4]    [,5]     [,6]     [,7] [,8]
[1,] 19.71344 21.01879 22.32931 23.14579 23.2537 24.16378 24.68913   NA
[2,] 20.35656 21.46121 22.73069 23.21421 23.7463 24.34622 24.93087   NA

$out
[1] 23.01

$group
[1] 4

$names
[1] "1" "2" "3" "4" "5" "6" "7" NA 

Warning message:
In bxp(list(stats = c(19.31, 19.73, 20.035, 20.435, 20.6, 20.69,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/fisher/rcomp/tmp/6jc531386174946.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,] 1.596420 4.500 1.9350
[2,] 1.610951 4.555 1.9825
[3,] 1.668869 4.770 2.0175
[4,] 1.760493 4.935 2.1600
[5,] 1.915724 5.320 2.4000

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 1.600661 4.596679 1.936541
[2,] 1.737076 4.943321 2.098459

$out
[1] 2.46

$group
[1] 3

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

Warning message:
In bxp(list(stats = c(1.59642010224663, 1.61095068906576, 1.66886867504425,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/10pya1386174946.ps tmp/10pya1386174946.png",intern=TRUE))
character(0)
> try(system("convert tmp/2s3pw1386174946.ps tmp/2s3pw1386174946.png",intern=TRUE))
character(0)
> try(system("convert tmp/3pftx1386174946.ps tmp/3pftx1386174946.png",intern=TRUE))
character(0)
> try(system("convert tmp/4tazg1386174946.ps tmp/4tazg1386174946.png",intern=TRUE))
character(0)
> try(system("convert tmp/5sc1b1386174946.ps tmp/5sc1b1386174946.png",intern=TRUE))
character(0)
> try(system("convert tmp/6jc531386174946.ps tmp/6jc531386174946.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  8.396   2.144  10.607