R version 2.15.2 (2012-10-26) -- "Trick or Treat"
Copyright (C) 2012 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i686-pc-linux-gnu (32-bit)

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> x <- c(2.25,2.25,2.45,2.5,2.5,2.64,2.75,2.93,3,3.17,3.25,3.39,3.5,3.5,3.65,3.75,3.75,3.9,4,4,4,4,4,4,4,4,4,4,4,4,4.18,4.25,4.25,3.97,3.42,2.75,2.31,2,1.66,1.31,1.09,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1.14,1.25,1.25,1.4,1.5,1.5,1.5,1.32,1.11)
> 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,] 2.25 3.50 4.00 2.31    1 1.00   NA
 [2,] 2.25 3.50 4.00 2.00    1 1.00   NA
 [3,] 2.45 3.65 4.00 1.66    1 1.00   NA
 [4,] 2.50 3.75 4.00 1.31    1 1.14   NA
 [5,] 2.50 3.75 4.00 1.09    1 1.25   NA
 [6,] 2.64 3.90 4.00 1.00    1 1.25   NA
 [7,] 2.75 4.00 4.18 1.00    1 1.40   NA
 [8,] 2.93 4.00 4.25 1.00    1 1.50   NA
 [9,] 3.00 4.00 4.25 1.00    1 1.50   NA
[10,] 3.17 4.00 3.97 1.00    1 1.50   NA
[11,] 3.25 4.00 3.42 1.00    1 1.32   NA
[12,] 3.39 4.00 2.75 1.00    1 1.11   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/17ko11355064556.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/27jsj1355064556.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/3id421355064556.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/4j8ir1355064556.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,] 1.00 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.00 1.000 1.000  1.00
[2,] 1.00 1.000 1.000 1.140 1.090 1.000 1.000 1.000 1.00 1.000 1.000  1.00
[3,] 2.28 2.125 2.055 1.905 1.875 1.945 2.075 2.215 2.25 2.335 2.285  1.93
[4,] 3.50 3.500 3.650 3.750 3.750 3.900 4.000 4.000 4.00 3.970 3.420  3.39
[5,] 4.00 4.000 4.000 4.000 4.000 4.000 4.180 4.250 4.25 4.000 4.000  4.00

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

$conf
          [,1]      [,2]      [,3]      [,4]      [,5]       [,6]      [,7]
[1,] 0.6674193 0.5124193 0.3456644 0.2214657 0.1592141 0.07440633 0.1399031
[2,] 3.8925807 3.7375807 3.7643356 3.5885343 3.5907859 3.81559367 4.0100969
          [,8]      [,9]     [,10]     [,11]     [,12]
[1,] 0.2799031 0.3149031 0.4192541 0.7240218 0.3883728
[2,] 4.1500969 4.1850969 4.2507459 3.8459782 3.4716272

$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(1, 1, 2.28, 3.5, 4, 1, 1, 2.125, 3.5, 4, 1,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/58bql1355064556.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,] 2.250 3.50 3.970 1.000    1 1.000   NA
[2,] 2.475 3.70 3.985 1.000    1 1.055   NA
[3,] 2.695 3.95 4.000 1.000    1 1.250   NA
[4,] 3.085 4.00 4.090 1.485    1 1.450   NA
[5,] 3.390 4.00 4.180 2.000    1 1.500   NA

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

$conf
         [,1]     [,2]     [,3]      [,4] [,5]     [,6] [,7]
[1,] 2.416775 3.813168 3.952109 0.7787882    1 1.069838   NA
[2,] 2.973225 4.086832 4.047891 1.2212118    1 1.430162   NA

$out
[1] 4.25 4.25 3.42 2.75 2.31

$group
[1] 3 3 3 3 4

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

Warning message:
In bxp(list(stats = c(2.25, 2.475, 2.695, 3.085, 3.39, 3.5, 3.7,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6xj4g1355064556.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,] 1.241075 3.00 1.89000
[2,] 1.324652 3.00 2.19375
[3,] 1.366122 3.00 2.30250
[4,] 1.452793 3.09 2.59750
[5,] 1.486747 3.18 2.64500

$n
[1] 12 12 12

$conf
         [,1]    [,2]     [,3]
[1,] 1.307676 2.95895 2.118347
[2,] 1.424568 3.04105 2.486653

$out
[1] 3.25 3.25

$group
[1] 2 2

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

Warning message:
In bxp(list(stats = c(1.24107480301014, 1.32465191552556, 1.36612227216567,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/17ko11355064556.ps tmp/17ko11355064556.png",intern=TRUE))
character(0)
> try(system("convert tmp/27jsj1355064556.ps tmp/27jsj1355064556.png",intern=TRUE))
character(0)
> try(system("convert tmp/3id421355064556.ps tmp/3id421355064556.png",intern=TRUE))
character(0)
> try(system("convert tmp/4j8ir1355064556.ps tmp/4j8ir1355064556.png",intern=TRUE))
character(0)
> try(system("convert tmp/58bql1355064556.ps tmp/58bql1355064556.png",intern=TRUE))
character(0)
> try(system("convert tmp/6xj4g1355064556.ps tmp/6xj4g1355064556.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  4.192   0.918   5.250