R version 3.1.0 (2014-04-10) -- "Spring Dance"
Copyright (C) 2014 The R Foundation for Statistical Computing
Platform: i686-pc-linux-gnu (32-bit)

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> x <- c(31124,26551,30651,25859,25100,25778,20418,18688,20424,24776,19814,12738,31566,30111,30019,31934,25826,26835,20205,17789,20520,22518,15572,11509,25447,24090,27786,26195,20516,22759,19028,16971,20036,22485,18730,14538,27561,25985,34670,32066,27186,29586,21359,21553,19573,24256,22380,16167,27297,28287,33474,28229,28785,25597,18130,20198,22849,23118,21925,20801,18785,20659,29367,23992,20645,22356,17902,15879,16963,21035,17988,10437)
> 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] 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,] 31124 31566 25447 27561 27297 18785   NA
 [2,] 26551 30111 24090 25985 28287 20659   NA
 [3,] 30651 30019 27786 34670 33474 29367   NA
 [4,] 25859 31934 26195 32066 28229 23992   NA
 [5,] 25100 25826 20516 27186 28785 20645   NA
 [6,] 25778 26835 22759 29586 25597 22356   NA
 [7,] 20418 20205 19028 21359 18130 17902   NA
 [8,] 18688 17789 16971 21553 20198 15879   NA
 [9,] 20424 20520 20036 19573 22849 16963   NA
[10,] 24776 22518 22485 24256 23118 21035   NA
[11,] 19814 15572 18730 22380 21925 17988   NA
[12,] 12738 11509 14538 16167 20801 10437   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/1gzea1398525557.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/2yte21398525557.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/31pts1398525557.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/43epn1398525557.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,] 18785 20659 27786 23992 20516 22356.0 17902.0 15879.0 19573 21035 15572
[2,] 25447 24090 29367 25859 20645 22759.0 18130.0 16971.0 19573 22485 17988
[3,] 27429 26268 30335 27212 25463 25687.5 19616.5 18238.5 20230 22818 19272
[4,] 31124 28287 33474 31934 27186 26835.0 20418.0 20198.0 20520 24256 21925
[5,] 31566 30111 34670 32066 28785 29586.0 21359.0 21553.0 20520 24776 22380
     [,12]
[1,] 10437
[2,] 11509
[3,] 13638
[4,] 16167
[5,] 20801

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

$conf
         [,1]    [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 23767.15 23560.8 27685.85 23293.43 21243.84 23058.35 18140.67 16156.98
[2,] 31090.85 28975.2 32984.15 31130.57 29682.16 28316.65 21092.33 20320.02
         [,9]    [,10]    [,11]    [,12]
[1,] 19619.15 21675.65 16732.51 10633.44
[2,] 20840.85 23960.35 21811.49 16642.56

$out
[1] 22849 16963

$group
[1] 9 9

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

Warning message:
In bxp(list(stats = c(18785, 25447, 27429, 31124, 31566, 20659,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/5j44e1398525557.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,] 12738 11509 14538.0 16167.0 18130.0 15879.0   NA
[2,] 20116 18997 18879.0 21456.0 21363.0 17432.5   NA
[3,] 24938 24172 21500.5 25120.5 24357.5 19715.0   NA
[4,] 26205 30065 24768.5 28573.5 28258.0 21695.5   NA
[5,] 31124 31934 27786.0 34670.0 33474.0 23992.0   NA

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6] [,7]
[1,] 22160.77 19123.81 18814.26 21874.16 21212.64 17770.62   NA
[2,] 27715.23 29220.19 24186.74 28366.84 27502.36 21659.38   NA

$out
[1] 29367 10437

$group
[1] 6 6

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

Warning message:
In bxp(list(stats = c(12738, 20116, 24938, 26205, 31124, 11509,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6f1mw1398525557.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,] 1348.964  3457.0  807.250
[2,] 1995.060  5780.0 2327.625
[3,] 2638.409  7057.0 3231.000
[4,] 3379.111  8860.5 4133.625
[5,] 4650.777 12781.0 5087.250

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 2007.134 5651.963 2407.271
[2,] 3269.684 8462.037 4054.729

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(1348.96399754281, 1995.05985190889, 2638.40873178751,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1gzea1398525557.ps tmp/1gzea1398525557.png",intern=TRUE))
character(0)
> try(system("convert tmp/2yte21398525557.ps tmp/2yte21398525557.png",intern=TRUE))
character(0)
> try(system("convert tmp/31pts1398525557.ps tmp/31pts1398525557.png",intern=TRUE))
character(0)
> try(system("convert tmp/43epn1398525557.ps tmp/43epn1398525557.png",intern=TRUE))
character(0)
> try(system("convert tmp/5j44e1398525557.ps tmp/5j44e1398525557.png",intern=TRUE))
character(0)
> try(system("convert tmp/6f1mw1398525557.ps tmp/6f1mw1398525557.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  4.032   0.789   4.842