R version 2.15.3 (2013-03-01) -- "Security Blanket"
Copyright (C) 2013 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i686-pc-linux-gnu (32-bit)

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> x <- c(8.5,8.5,8.5,8.6,8.6,8.4,8.2,8,8,8,8,7.9,7.9,7.9,7.9,8,7.9,7.4,7.2,7,6.9,7.1,7.2,7.2,7.1,6.9,6.8,6.8,6.8,6.9,7.1,7.2,7.2,7.1,7.1,7.2,7.5,7.7,7.8,7.7,7.7,7.8,8,8.1,8.1,8,8.1,8.2,8.4,8.5,8.5,8.5,8.5,8.5,8.4,8.3,8.2,8.1,7.9,7.6,7.3,7.1,7,7.1,7.1,7.1,7.3,7.3,7.3,7.2,7.2,7.1)
> 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,]  8.5  7.9  7.1  7.5  8.4  7.3   NA
 [2,]  8.5  7.9  6.9  7.7  8.5  7.1   NA
 [3,]  8.5  7.9  6.8  7.8  8.5  7.0   NA
 [4,]  8.6  8.0  6.8  7.7  8.5  7.1   NA
 [5,]  8.6  7.9  6.8  7.7  8.5  7.1   NA
 [6,]  8.4  7.4  6.9  7.8  8.5  7.1   NA
 [7,]  8.2  7.2  7.1  8.0  8.4  7.3   NA
 [8,]  8.0  7.0  7.2  8.1  8.3  7.3   NA
 [9,]  8.0  6.9  7.2  8.1  8.2  7.3   NA
[10,]  8.0  7.1  7.1  8.0  8.1  7.2   NA
[11,]  8.0  7.2  7.1  8.1  7.9  7.2   NA
[12,]  7.9  7.2  7.2  8.2  7.6  7.1   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/1v8ln1366965653.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/2xzzr1366965653.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/3jzfk1366965653.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/49ehz1366965653.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,]  7.1  6.9 6.80 6.80  6.8  6.9 7.10 7.00 6.90   7.1  7.10   7.1
[2,]  7.3  7.1 7.00 7.10  7.1  7.1 7.20 7.20 7.20   7.1  7.20   7.2
[3,]  7.7  7.8 7.85 7.85  7.8  7.6 7.65 7.65 7.65   7.6  7.55   7.4
[4,]  8.4  8.5 8.50 8.50  8.5  8.4 8.20 8.10 8.10   8.0  8.00   7.9
[5,]  8.5  8.5 8.50 8.60  8.6  8.5 8.40 8.30 8.20   8.1  8.10   8.2

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 6.990464 6.896955 6.882452 6.946955 6.896955 6.761458 7.004968 7.069471
[2,] 8.409536 8.703045 8.817548 8.753045 8.703045 8.438542 8.295032 8.230529
         [,9]    [,10]    [,11]    [,12]
[1,] 7.069471 7.019471 7.033974 6.948477
[2,] 8.230529 8.180529 8.066026 7.851523

$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(7.1, 7.3, 7.7, 8.4, 8.5, 6.9, 7.1, 7.8, 8.5,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/51ls61366965653.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,]  7.9 6.90 6.80  7.5 7.90 7.00   NA
[2,]  8.0 7.15 6.85  7.7 8.15 7.10   NA
[3,]  8.3 7.30 7.10  7.9 8.40 7.15   NA
[4,]  8.5 7.90 7.15  8.1 8.50 7.30   NA
[5,]  8.6 8.00 7.20  8.2 8.50 7.30   NA

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

$conf
         [,1]    [,2]     [,3]     [,4]     [,5]     [,6] [,7]
[1,] 8.071947 6.95792 6.963168 7.717557 8.240363 7.058779   NA
[2,] 8.528053 7.64208 7.236832 8.082443 8.559637 7.241221   NA

$out
[1] 7.6

$group
[1] 5

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

Warning message:
In bxp(list(stats = c(7.9, 8, 8.3, 8.5, 8.6, 6.9, 7.15, 7.3, 7.9,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/64o2n1366965653.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,] 0.4457204 1.00 0.625
[2,] 0.5212283 1.20 0.850
[3,] 0.5733882 1.35 0.925
[4,] 0.7002184 1.65 1.100
[5,] 0.7305249 1.80 1.150

$n
[1] 12 12 12

$conf
          [,1]     [,2]      [,3]
[1,] 0.4917496 1.144752 0.8109733
[2,] 0.6550267 1.555248 1.0390267

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(0.445720390678581, 0.521228324471571, 0.573388176501622,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1v8ln1366965653.ps tmp/1v8ln1366965653.png",intern=TRUE))
character(0)
> try(system("convert tmp/2xzzr1366965653.ps tmp/2xzzr1366965653.png",intern=TRUE))
character(0)
> try(system("convert tmp/3jzfk1366965653.ps tmp/3jzfk1366965653.png",intern=TRUE))
character(0)
> try(system("convert tmp/49ehz1366965653.ps tmp/49ehz1366965653.png",intern=TRUE))
character(0)
> try(system("convert tmp/51ls61366965653.ps tmp/51ls61366965653.png",intern=TRUE))
character(0)
> try(system("convert tmp/64o2n1366965653.ps tmp/64o2n1366965653.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  4.329   0.803   5.114