R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- c(37.3,39.5,40.6,41.4,41.3,43.5,44,44.9,46.4,47.4,48.7,49.7,51.1,53.2,56.2,58.1,60.6,64.1,67.4,68,70.9,72.8,74.9,76.1,77,78.1,80,79.7,82.7,84.3,83.5,85.9,87,88.6,90.6,91.3,91.6,93.2,95,95.2,97.4,98.6,99.6,100.6,101.3,102.8,103.2,103,105.4,104.7,105.2,105.2,102.8,100.3,99.8,99.4,100.6,100.2,100.4,98.8,96.9,96.3,96.1,93.5,92.1,91.7,87.9,86.4,84.9,81.7,82.6,83.1)
> par1 = '4'
> par1 <- '4'
> #'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] 18
> 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] 18 18 18 18
> arr
     [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12] [,13] [,14]
[1,] 37.3 41.3 46.4 51.1 60.6 70.9 77.0 82.7 87.0  91.6  97.4 101.3 105.4 102.8
[2,] 39.5 43.5 47.4 53.2 64.1 72.8 78.1 84.3 88.6  93.2  98.6 102.8 104.7 100.3
[3,] 40.6 44.0 48.7 56.2 67.4 74.9 80.0 83.5 90.6  95.0  99.6 103.2 105.2  99.8
[4,] 41.4 44.9 49.7 58.1 68.0 76.1 79.7 85.9 91.3  95.2 100.6 103.0 105.2  99.4
     [,15] [,16] [,17] [,18] [,19]
[1,] 100.6  96.9  92.1  84.9    NA
[2,] 100.2  96.3  91.7  81.7    NA
[3,] 100.4  96.1  87.9  82.6    NA
[4,]  98.8  93.5  86.4  83.1    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/1i0e31416422852.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/2e0pu1416422852.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/30s8y1416422852.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/4nuw91416422852.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]
[1,]  37.30  39.50  40.6  41.40
[2,]  60.60  64.10  67.4  68.00
[3,]  85.95  86.45  85.7  86.15
[4,]  97.40  98.60  99.6  98.80
[5,] 105.40 104.70 105.2 105.20

$n
[1] 18 18 18 18

$conf
         [,1]     [,2]     [,3]     [,4]
[1,] 72.24533 73.60187 73.70841 74.67979
[2,] 99.65467 99.29813 97.69159 97.62021

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(37.3, 60.6, 85.95, 97.4, 105.4, 39.5, 64.1,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/5slaq1416422852.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]  [,9] [,10] [,11]  [,12]
[1,] 37.30 41.30 46.40 51.10 60.60 70.90 77.00 82.7 87.00  91.6  97.4 101.30
[2,] 38.40 42.40 46.90 52.15 62.35 71.85 77.55 83.1 87.80  92.4  98.0 102.05
[3,] 40.05 43.75 48.05 54.70 65.75 73.85 78.90 83.9 89.60  94.1  99.1 102.90
[4,] 41.00 44.45 49.20 57.15 67.70 75.50 79.85 85.1 90.95  95.1 100.1 103.10
[5,] 41.40 44.90 49.70 58.10 68.00 76.10 80.00 85.9 91.30  95.2 100.6 103.20
      [,13]  [,14] [,15] [,16] [,17] [,18] [,19]
[1,] 104.70  99.40  98.8  93.5 86.40 81.70    NA
[2,] 104.95  99.60  99.5  94.8 87.15 82.15    NA
[3,] 105.20 100.05 100.3  96.2 89.80 82.85    NA
[4,] 105.30 101.55 100.5  96.6 91.90 84.00    NA
[5,] 105.40 102.80 100.6  96.9 92.10 84.90    NA

$n
 [1] 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 0

$conf
       [,1]    [,2]   [,3]  [,4]    [,5]    [,6]   [,7]  [,8]    [,9]  [,10]
[1,] 37.996 42.1305 46.233 50.75 61.5235 70.9665 77.083 82.32 87.1115 91.967
[2,] 42.104 45.3695 49.867 58.65 69.9765 76.7335 80.717 85.48 92.0885 96.233
       [,11]    [,12]    [,13]    [,14]  [,15]  [,16]   [,17]   [,18] [,19]
[1,]  97.441 102.0705 104.9235  98.5095  99.51 94.778 86.0475 81.3885    NA
[2,] 100.759 103.7295 105.4765 101.5905 101.09 97.622 93.5525 84.3115    NA

$out
numeric(0)

$group
numeric(0)

$names
 [1] "1"  "2"  "3"  "4"  "5"  "6"  "7"  "8"  "9"  "10" "11" "12" "13" "14" "15"
[16] "16" "17" "18" NA  

Warning message:
In bxp(list(stats = c(37.3, 38.4, 40.05, 41, 41.4, 41.3, 42.4, 43.75,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6588c1416422852.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,] 20.58074 63.80 27.8750
[2,] 20.86865 64.20 28.6625
[3,] 21.44504 64.90 30.6000
[4,] 22.20193 66.65 32.9250
[5,] 22.67033 68.10 34.1000

$n
[1] 4 4 4

$conf
         [,1]    [,2]     [,3]
[1,] 20.39175 62.9645 27.23262
[2,] 22.49833 66.8355 33.96738

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(20.5807392983187, 20.8686465792864, 21.4450398311805,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1i0e31416422852.ps tmp/1i0e31416422852.png",intern=TRUE))
character(0)
> try(system("convert tmp/2e0pu1416422852.ps tmp/2e0pu1416422852.png",intern=TRUE))
character(0)
> try(system("convert tmp/30s8y1416422852.ps tmp/30s8y1416422852.png",intern=TRUE))
character(0)
> try(system("convert tmp/4nuw91416422852.ps tmp/4nuw91416422852.png",intern=TRUE))
character(0)
> try(system("convert tmp/5slaq1416422852.ps tmp/5slaq1416422852.png",intern=TRUE))
character(0)
> try(system("convert tmp/6588c1416422852.ps tmp/6588c1416422852.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.239   0.355   2.616