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(74.74,74.80,74.46,74.03,74.45,74.74,74.74,74.78,74.25,74.14,74.41,74.51,74.51,74.64,74.52,74.51,74.39,74.11,74.11,74.20,73.84,73.89,74.31,73.56,73.56,73.99,73.63,73.51,73.60,73.03,73.03,72.61,72.30,72.56,72.76,72.92,72.92,72.93,73.13,73.31,73.34,74.31,74.31,74.65,74.78,74.73,74.71,74.63,74.63,74.95,75.17,75.49,74.54,75.59,75.59,76.06,76.06,76.39,76.39,76.93,76.93,77.39,77.65,78.04,77.66,77.31,77.31,77.33,78.01,78.31,78.61,78.94,78.94,79.84,78.76,78.62,78.36,78.53,78.53,78.76,78.76,79.37,79.83,79.89)
> 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,] 74.74 74.51 73.56 72.92 74.63 76.93 78.94   NA
 [2,] 74.80 74.64 73.99 72.93 74.95 77.39 79.84   NA
 [3,] 74.46 74.52 73.63 73.13 75.17 77.65 78.76   NA
 [4,] 74.03 74.51 73.51 73.31 75.49 78.04 78.62   NA
 [5,] 74.45 74.39 73.60 73.34 74.54 77.66 78.36   NA
 [6,] 74.74 74.11 73.03 74.31 75.59 77.31 78.53   NA
 [7,] 74.74 74.11 73.03 74.31 75.59 77.31 78.53   NA
 [8,] 74.78 74.20 72.61 74.65 76.06 77.33 78.76   NA
 [9,] 74.25 73.84 72.30 74.78 76.06 78.01 78.76   NA
[10,] 74.14 73.89 72.56 74.73 76.39 78.31 79.37   NA
[11,] 74.41 74.31 72.76 74.71 76.39 78.61 79.83   NA
[12,] 74.51 73.56 72.92 74.63 76.93 78.94 79.89   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/1cuqj1398622868.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/2kqq51398622868.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/3v7qt1398622868.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/4qqfl1398622868.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,] 72.920 72.930 73.130 73.310 73.340 73.03 73.03 72.610 72.300 72.560 72.76
[2,] 74.035 74.315 74.045 73.770 73.995 74.21 74.21 74.425 74.045 74.015 74.36
[3,] 74.630 74.800 74.520 74.510 74.450 74.74 74.74 74.780 74.780 74.730 74.71
[4,] 75.835 76.170 76.410 76.765 76.100 76.45 76.45 76.695 77.035 77.350 77.50
[5,] 76.930 77.390 78.760 78.620 78.360 78.53 78.53 78.760 78.760 79.370 79.83
      [,12]
[1,] 72.920
[2,] 74.035
[3,] 74.630
[4,] 77.935
[5,] 79.890

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 73.55507 73.69222 73.10766 72.72143 73.19293 73.40231 73.40231 73.42439
[2,] 75.70493 75.90778 75.93234 76.29857 75.70707 76.07769 76.07769 76.13561
         [,9]    [,10]    [,11]    [,12]
[1,] 72.99442 72.73839 72.83484 72.30098
[2,] 76.56558 76.72161 76.58516 76.95902

$out
[1] 78.94 79.84

$group
[1] 1 2

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

Warning message:
In bxp(list(stats = c(72.92, 74.035, 74.63, 75.835, 76.93, 72.93,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/56y8b1398622868.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,] 74.030 73.560 72.300 72.92 74.540 76.930 78.360   NA
[2,] 74.330 74.000 72.685 73.22 75.060 77.320 78.575   NA
[3,] 74.485 74.255 73.030 74.31 75.590 77.655 78.760   NA
[4,] 74.740 74.510 73.580 74.68 76.225 78.175 79.600   NA
[5,] 74.800 74.640 73.990 74.78 76.930 78.940 79.890   NA

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

$conf
       [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7] [,8]
[1,] 74.298 74.02239 72.62178 73.64408 75.05864 77.26503 78.29249   NA
[2,] 74.672 74.48761 73.43822 74.97592 76.12136 78.04497 79.22751   NA

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(74.03, 74.33, 74.485, 74.74, 74.8, 73.56,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/68h9j1398622868.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,] 1.931371 5.020 1.8000
[2,] 2.026168 5.500 2.1725
[3,] 2.126166 6.085 2.3175
[4,] 2.414977 6.860 3.0675
[5,] 2.711786 7.070 3.9000

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 1.948827 5.464695 1.909284
[2,] 2.303504 6.705305 2.725716

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(1.93137133614829, 2.02616806001593, 2.12616568019993,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1cuqj1398622868.ps tmp/1cuqj1398622868.png",intern=TRUE))
character(0)
> try(system("convert tmp/2kqq51398622868.ps tmp/2kqq51398622868.png",intern=TRUE))
character(0)
> try(system("convert tmp/3v7qt1398622868.ps tmp/3v7qt1398622868.png",intern=TRUE))
character(0)
> try(system("convert tmp/4qqfl1398622868.ps tmp/4qqfl1398622868.png",intern=TRUE))
character(0)
> try(system("convert tmp/56y8b1398622868.ps tmp/56y8b1398622868.png",intern=TRUE))
character(0)
> try(system("convert tmp/68h9j1398622868.ps tmp/68h9j1398622868.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  4.116   0.799   4.926