R version 3.3.2 (2016-10-31) -- "Sincere Pumpkin Patch"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- c(11,13,15,29,31,22,36,39,30,20,18,13,11,16,20,29,31,24,40,41,25,19,19,18,10,17,25,30,32,24,38,36,26,25,26,16,12,15,21,33,32,24,41,38,28,24,30,18)
> 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] 48
> (np <- floor(n / par1))
[1] 4
> 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] 4 4 4 4 4 4 4 4 4 4 4 4
> arr
      [,1] [,2] [,3] [,4] [,5]
 [1,]   11   11   10   12   NA
 [2,]   13   16   17   15   NA
 [3,]   15   20   25   21   NA
 [4,]   29   29   30   33   NA
 [5,]   31   31   32   32   NA
 [6,]   22   24   24   24   NA
 [7,]   36   40   38   41   NA
 [8,]   39   41   36   38   NA
 [9,]   30   25   26   28   NA
[10,]   20   19   25   24   NA
[11,]   18   19   26   30   NA
[12,]   13   18   16   18   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/16kdr1479553782.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/2wdzp1479553782.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/3yj9c1479553782.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/4473x1479553782.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] [,12]
[1,] 10.0 13.0 15.0 29.0 31.0   22 36.0 36.0 25.0  19.0  18.0  13.0
[2,] 10.5 14.0 17.5 29.0 31.0   23 37.0 37.0 25.5  19.5  18.5  14.5
[3,] 11.0 15.5 20.5 29.5 31.5   24 39.0 38.5 27.0  22.0  22.5  17.0
[4,] 11.5 16.5 23.0 31.5 32.0   24 40.5 40.0 29.0  24.5  28.0  18.0
[5,] 12.0 17.0 25.0 33.0 32.0   24 41.0 41.0 30.0  25.0  30.0  18.0

$n
 [1] 4 4 4 4 4 4 4 4 4 4 4 4

$conf
      [,1]   [,2]   [,3]   [,4]  [,5]  [,6]   [,7]  [,8]   [,9] [,10]  [,11]
[1,] 10.21 13.525 16.155 27.525 30.71 23.21 36.235 36.13 24.235 18.05 14.995
[2,] 11.79 17.475 24.845 31.475 32.29 24.79 41.765 40.87 29.765 25.95 30.005
      [,12]
[1,] 14.235
[2,] 19.765

$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(10, 10.5, 11, 11.5, 12, 13, 14, 15.5, 16.5,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/5zmk51479553782.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]
[1,] 11.0 11.0 10.0 12.0   NA
[2,] 14.0 18.5 20.5 19.5   NA
[3,] 21.0 22.0 25.5 26.0   NA
[4,] 30.5 30.0 31.0 32.5   NA
[5,] 39.0 41.0 38.0 41.0   NA

$n
[1] 12 12 12 12  0

$conf
         [,1]     [,2]     [,3]     [,4] [,5]
[1,] 13.47424 16.75477 20.71088 20.07061   NA
[2,] 28.52576 27.24523 30.28912 31.92939   NA

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(11, 14, 21, 30.5, 39, 11, 18.5, 22, 30, 41,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6vfpx1479553782.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,] 0.5773503  1.0 0.500
[2,] 1.3539126  3.0 1.375
[3,] 2.1495109  5.0 2.375
[4,] 2.6534141  5.5 3.000
[5,] 4.1129876  6.0 4.500

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 1.556800 3.859733 1.633827
[2,] 2.742222 6.140267 3.116173

$out
[1]  5.737305 10.000000 12.000000  8.250000

$group
[1] 1 2 2 3

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

Warning message:
In bxp(list(stats = c(0.577350269189626, 1.35391256382997, 2.14951089103724,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/16kdr1479553782.ps tmp/16kdr1479553782.png",intern=TRUE))
character(0)
> try(system("convert tmp/2wdzp1479553782.ps tmp/2wdzp1479553782.png",intern=TRUE))
character(0)
> try(system("convert tmp/3yj9c1479553782.ps tmp/3yj9c1479553782.png",intern=TRUE))
character(0)
> try(system("convert tmp/4473x1479553782.ps tmp/4473x1479553782.png",intern=TRUE))
character(0)
> try(system("convert tmp/5zmk51479553782.ps tmp/5zmk51479553782.png",intern=TRUE))
character(0)
> try(system("convert tmp/6vfpx1479553782.ps tmp/6vfpx1479553782.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.089   0.176   2.296