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(3.65,3.66,3.69,3.7,3.7,3.71,3.71,3.71,3.72,3.72,3.73,3.74,3.78,3.78,3.79,3.79,3.8,3.81,3.83,3.84,3.88,3.91,3.96,3.96,3.97,3.98,3.99,3.99,4,4,4.02,4.02,4.02,4.03,4.03,4.03,4.04,4.04,4.05,4.05,4.05,4.05,4.06,4.06,4.06,4.06,4.07,4.07,4.08,4.08,4.08,4.09,4.09,4.09,4.09,4.1,4.1,4.11,4.11,4.12,4.12,4.12,4.12,4.12,4.15,4.15,4.15,4.15,4.16,4.16,4.16,4.2)
> 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,] 3.65 3.78 3.97 4.04 4.08 4.12   NA
 [2,] 3.66 3.78 3.98 4.04 4.08 4.12   NA
 [3,] 3.69 3.79 3.99 4.05 4.08 4.12   NA
 [4,] 3.70 3.79 3.99 4.05 4.09 4.12   NA
 [5,] 3.70 3.80 4.00 4.05 4.09 4.15   NA
 [6,] 3.71 3.81 4.00 4.05 4.09 4.15   NA
 [7,] 3.71 3.83 4.02 4.06 4.09 4.15   NA
 [8,] 3.71 3.84 4.02 4.06 4.10 4.15   NA
 [9,] 3.72 3.88 4.02 4.06 4.10 4.16   NA
[10,] 3.72 3.91 4.03 4.06 4.11 4.16   NA
[11,] 3.73 3.96 4.03 4.07 4.11 4.16   NA
[12,] 3.74 3.96 4.03 4.07 4.12 4.20   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/1j6061354981319.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/2o5iq1354981319.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/30kvg1354981319.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/47ud01354981319.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,] 3.650 3.66 3.69 3.70 3.700 3.710 3.71 3.71 3.72 3.720  3.96  3.74
[2,] 3.780 3.78 3.79 3.79 3.800 3.810 3.83 3.84 3.88 3.910  3.96  3.96
[3,] 4.005 4.01 4.02 4.02 4.025 4.025 4.04 4.04 4.04 4.045  4.05  4.05
[4,] 4.080 4.08 4.08 4.09 4.090 4.090 4.09 4.10 4.10 4.110  4.11  4.12
[5,] 4.120 4.12 4.12 4.12 4.150 4.150 4.15 4.15 4.16 4.160  4.16  4.20

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

$conf
        [,1]    [,2]     [,3]    [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 3.81149 3.81649 3.832941 3.82649 3.837941 3.844391 3.872292 3.872292
[2,] 4.19851 4.20351 4.207059 4.21351 4.212059 4.205609 4.207708 4.207708
         [,9]    [,10]    [,11]    [,12]
[1,] 3.898093 3.915994 3.953245 3.946795
[2,] 4.181907 4.174006 4.146755 4.153205

$out
[1] 3.73

$group
[1] 11

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

Warning message:
In bxp(list(stats = c(3.65, 3.78, 4.005, 4.08, 4.12, 3.66, 3.78,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/54auw1354981319.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,] 3.660 3.780 3.970 4.040 4.080 4.12   NA
[2,] 3.695 3.790 3.990 4.050 4.085 4.12   NA
[3,] 3.710 3.820 4.010 4.055 4.090 4.15   NA
[4,] 3.720 3.895 4.025 4.060 4.105 4.16   NA
[5,] 3.740 3.960 4.030 4.070 4.120 4.20   NA

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6] [,7]
[1,] 3.698597 3.772109 3.994036 4.050439 4.080878 4.131756   NA
[2,] 3.721403 3.867891 4.025964 4.059561 4.099122 4.168244   NA

$out
[1] 3.65

$group
[1] 1

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

Warning message:
In bxp(list(stats = c(3.66, 3.695, 3.71, 3.72, 3.74, 3.78, 3.79,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6qbp61354981319.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,] 0.1532319 0.420 0.12250
[2,] 0.1613921 0.435 0.16625
[3,] 0.1707657 0.440 0.21375
[4,] 0.1750032 0.455 0.23625
[5,] 0.1857956 0.470 0.24250

$n
[1] 12 12 12

$conf
          [,1]      [,2]      [,3]
[1,] 0.1645576 0.4308779 0.1818225
[2,] 0.1769738 0.4491221 0.2456775

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(0.153231850475024, 0.161392072395019, 0.170765689150696,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1j6061354981319.ps tmp/1j6061354981319.png",intern=TRUE))
character(0)
> try(system("convert tmp/2o5iq1354981319.ps tmp/2o5iq1354981319.png",intern=TRUE))
character(0)
> try(system("convert tmp/30kvg1354981319.ps tmp/30kvg1354981319.png",intern=TRUE))
character(0)
> try(system("convert tmp/47ud01354981319.ps tmp/47ud01354981319.png",intern=TRUE))
character(0)
> try(system("convert tmp/54auw1354981319.ps tmp/54auw1354981319.png",intern=TRUE))
character(0)
> try(system("convert tmp/6qbp61354981319.ps tmp/6qbp61354981319.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  3.248   0.562   3.786