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(27.65,28.19,28.98,28.99,29.02,29,29.04,29.19,29.23,29.26,29.02,28.47,28.53,28.48,28.68,28.89,29.2,29.21,29.15,29.22,29.34,29.13,28.84,28.76,28.75,28.89,28.82,29.12,29.21,29.3,29.32,29.52,29.64,29.54,29.54,29.34,29.34,29.54,29.94,30.17,30.23,30.34,30.34,30.36,30.3,30.28,29.89,29.58,29.68,29.73,30.07,30.32,30.55,30.62,30.67,30.79,30.8,30.5,30.07,29.41,29.42,29.99,30.14,30.41,30.78,30.88,30.92,30.93,31.62,31.48,31.3,31.11,31.16,31.22,31.66,32.11,32.27,32.36,32.42,32.52,32.41,31.87,31.04,30.58)
> 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,] 27.65 28.53 28.75 29.34 29.68 29.42 31.16   NA
 [2,] 28.19 28.48 28.89 29.54 29.73 29.99 31.22   NA
 [3,] 28.98 28.68 28.82 29.94 30.07 30.14 31.66   NA
 [4,] 28.99 28.89 29.12 30.17 30.32 30.41 32.11   NA
 [5,] 29.02 29.20 29.21 30.23 30.55 30.78 32.27   NA
 [6,] 29.00 29.21 29.30 30.34 30.62 30.88 32.36   NA
 [7,] 29.04 29.15 29.32 30.34 30.67 30.92 32.42   NA
 [8,] 29.19 29.22 29.52 30.36 30.79 30.93 32.52   NA
 [9,] 29.23 29.34 29.64 30.30 30.80 31.62 32.41   NA
[10,] 29.26 29.13 29.54 30.28 30.50 31.48 31.87   NA
[11,] 29.02 28.84 29.54 29.89 30.07 31.30 31.04   NA
[12,] 28.47 28.76 29.34 29.58 29.41 31.11 30.58   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/1cmxs1388080641.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/2wz8h1388080641.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/3qoz51388080641.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/4cuxs1388080641.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,] 27.65 28.190 28.680 28.890 29.020 29.000 29.040 29.19 29.23 29.13 28.840
[2,] 28.64 28.685 28.900 29.055 29.205 29.255 29.235 29.37 29.49 29.40 29.280
[3,] 29.34 29.540 29.940 30.170 30.230 30.340 30.340 30.36 30.30 30.28 29.890
[4,] 29.55 29.860 30.105 30.365 30.665 30.750 30.795 30.86 31.21 30.99 30.555
[5,] 29.68 31.220 31.660 32.110 32.270 32.360 32.420 32.52 32.41 31.87 31.300
     [,12]
[1,] 28.47
[2,] 29.05
[3,] 29.41
[4,] 30.08
[5,] 31.11

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]    [,8]
[1,] 28.79656 28.83831 29.22039 29.38769 29.35811 29.44721 29.40839 29.4702
[2,] 29.88344 30.24169 30.65961 30.95231 31.10189 31.23279 31.27161 31.2498
         [,9]    [,10]    [,11]   [,12]
[1,] 29.27284 29.33048 29.12859 28.7949
[2,] 31.32716 31.22952 30.65141 30.0251

$out
[1] 31.16

$group
[1] 1

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

Warning message:
In bxp(list(stats = c(27.65, 28.64, 29.34, 29.55, 29.68, 28.19,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/5e6dc1388080641.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,] 28.190 28.480 28.750 29.340 29.410 29.420 30.580   NA
[2,] 28.725 28.720 29.005 29.735 29.900 30.275 31.190   NA
[3,] 29.010 29.010 29.310 30.200 30.410 30.900 31.990   NA
[4,] 29.115 29.205 29.530 30.320 30.645 31.205 32.385   NA
[5,] 29.260 29.340 29.640 30.360 30.800 31.620 32.520   NA

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

$conf
         [,1]     [,2]     [,3]     [,4]    [,5]     [,6]     [,7] [,8]
[1,] 28.83212 28.78879 29.07054 29.93318 30.0702 30.47582 31.44495   NA
[2,] 29.18788 29.23121 29.54946 30.46682 30.7498 31.32418 32.53505   NA

$out
[1] 27.65

$group
[1] 1

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

Warning message:
In bxp(list(stats = c(28.19, 28.725, 29.01, 29.115, 29.26, 28.48,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6u3dc1388080641.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,] 0.9392677 2.460 0.9100
[2,] 1.0364943 2.860 1.1900
[3,] 1.1166849 3.200 1.3850
[4,] 1.1933795 3.345 1.5275
[5,] 1.2165231 3.510 1.7200

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 1.045129 2.978788 1.231064
[2,] 1.188241 3.421212 1.538936

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(0.939267698541694, 1.03649426253319, 1.11668492164101,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1cmxs1388080641.ps tmp/1cmxs1388080641.png",intern=TRUE))
character(0)
> try(system("convert tmp/2wz8h1388080641.ps tmp/2wz8h1388080641.png",intern=TRUE))
character(0)
> try(system("convert tmp/3qoz51388080641.ps tmp/3qoz51388080641.png",intern=TRUE))
character(0)
> try(system("convert tmp/4cuxs1388080641.ps tmp/4cuxs1388080641.png",intern=TRUE))
character(0)
> try(system("convert tmp/5e6dc1388080641.ps tmp/5e6dc1388080641.png",intern=TRUE))
character(0)
> try(system("convert tmp/6u3dc1388080641.ps tmp/6u3dc1388080641.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  5.554   1.230   6.789