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(8.7,8.7,8.6,8.5,8.3,8,8.2,8.1,8.1,8,7.9,7.9,8,8,7.9,8,7.7,7.2,7.5,7.3,7,7,7,7.2,7.3,7.1,6.8,6.4,6.1,6.5,7.7,7.9,7.5,6.9,6.6,6.9,7.7,8,8,7.7,7.3,7.4,8.1,8.3,8.1,7.9,7.9,8.3,8.6,8.7,8.5,8.3,8,8,8.8,8.7,8.5,8.1,7.8,7.7,7.5,7.2,6.9,6.6,6.5,6.6,7.7,8,7.7,7.3,7,7,7.3,7.3,7.1,7.1,7,7,7.5,7.8,7.9,8.1,8.3,8.4)
> 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,]  8.7  8.0  7.3  7.7  8.6  7.5  7.3   NA
 [2,]  8.7  8.0  7.1  8.0  8.7  7.2  7.3   NA
 [3,]  8.6  7.9  6.8  8.0  8.5  6.9  7.1   NA
 [4,]  8.5  8.0  6.4  7.7  8.3  6.6  7.1   NA
 [5,]  8.3  7.7  6.1  7.3  8.0  6.5  7.0   NA
 [6,]  8.0  7.2  6.5  7.4  8.0  6.6  7.0   NA
 [7,]  8.2  7.5  7.7  8.1  8.8  7.7  7.5   NA
 [8,]  8.1  7.3  7.9  8.3  8.7  8.0  7.8   NA
 [9,]  8.1  7.0  7.5  8.1  8.5  7.7  7.9   NA
[10,]  8.0  7.0  6.9  7.9  8.1  7.3  8.1   NA
[11,]  7.9  7.0  6.6  7.9  7.8  7.0  8.3   NA
[12,]  7.9  7.2  6.9  8.3  7.7  7.0  8.4   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/1376j1400763266.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/2t5ch1400763266.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/334301400763266.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/4yejm1400763266.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,]  7.3 7.10 6.80 6.40 6.10  6.5 7.50 7.80  7.0  6.90   6.6   6.9
[2,]  7.4 7.25 7.00 6.85 6.75  6.8 7.60 7.85  7.6  7.15   7.0   7.1
[3,]  7.7 8.00 7.90 7.70 7.30  7.2 7.70 8.00  7.9  7.90   7.8   7.7
[4,]  8.3 8.35 8.25 8.15 7.85  7.7 8.15 8.20  8.1  8.05   7.9   8.1
[5,]  8.7 8.70 8.60 8.50 8.30  8.0 8.80 8.70  8.5  8.10   8.3   8.4

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

$conf
         [,1]     [,2]    [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 7.162535 7.343098 7.15352 6.923661 6.643098 6.662535 7.371549 7.790986
[2,] 8.237465 8.656902 8.64648 8.476339 7.956902 7.737465 8.028451 8.209014
         [,9]    [,10]    [,11]    [,12]
[1,] 7.601408 7.362535 7.262535 7.102816
[2,] 8.198592 8.437465 8.337465 8.297184

$out
[1] 7.3

$group
[1] 8

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

Warning message:
In bxp(list(stats = c(7.3, 7.4, 7.7, 8.3, 8.7, 7.1, 7.25, 8, 8.35,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/5bnhx1400763266.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,] 7.90 7.00 6.10 7.30 7.70 6.50  7.0   NA
[2,] 8.00 7.10 6.55 7.70 8.00 6.75  7.1   NA
[3,] 8.15 7.40 6.90 7.95 8.40 7.10  7.4   NA
[4,] 8.55 7.95 7.40 8.10 8.65 7.60  8.0   NA
[5,] 8.70 8.00 7.90 8.30 8.80 8.00  8.4   NA

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7] [,8]
[1,] 7.899141 7.012309 6.512309 7.767557 8.103531 6.712309 6.989504   NA
[2,] 8.400859 7.787691 7.287691 8.132443 8.696469 7.487691 7.810496   NA

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(7.9, 8, 8.15, 8.55, 8.7, 7, 7.1, 7.4, 7.95,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6wd001400763266.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,] 0.4336995 1.20 0.350
[2,] 0.5080013 1.40 0.725
[3,] 0.6076835 1.50 0.900
[4,] 0.7159212 1.75 1.100
[5,] 0.8275034 2.20 1.300

$n
[1] 12 12 12

$conf
          [,1]     [,2]    [,3]
[1,] 0.5128498 1.340363 0.72896
[2,] 0.7025172 1.659637 1.07104

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(0.433699479011951, 0.508001287079908, 0.607683493556345,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1376j1400763266.ps tmp/1376j1400763266.png",intern=TRUE))
character(0)
> try(system("convert tmp/2t5ch1400763266.ps tmp/2t5ch1400763266.png",intern=TRUE))
character(0)
> try(system("convert tmp/334301400763266.ps tmp/334301400763266.png",intern=TRUE))
character(0)
> try(system("convert tmp/4yejm1400763266.ps tmp/4yejm1400763266.png",intern=TRUE))
character(0)
> try(system("convert tmp/5bnhx1400763266.ps tmp/5bnhx1400763266.png",intern=TRUE))
character(0)
> try(system("convert tmp/6wd001400763266.ps tmp/6wd001400763266.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.848   0.519   3.403