R version 2.8.0 (2008-10-20)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> x <- c(21.1,21,20.4,19.5,18.6,18.8,23.7,24.8,25,23.6,22.3,21.8,20.8,19.7,18.3,17.4,17,18.1,23.9,25.6,25.3,23.6,21.9,21.4,20.6,20.5,20.2,20.6,19.7,19.3,22.8,23.5,23.8,22.6,22,21.7,20.7,20.2,19.1,19.5,18.7,18.6,22.2,23.2,23.5,21.3,20,18.7,18.9,18.3,18.4,19.9,19.2,18.5,20.9,20.5,19.4,18.1,17,17)
> par1 = '12'
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Prof. Dr. P. Wessa
> #To cite this work: AUTHOR(S), (YEAR), YOUR SOFTWARE TITLE (vNUMBER) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #Technical description: Write here your technical program description (don't use hard returns!)
> par1 <- as.numeric(par1)
> (n <- length(x))
[1] 60
> (np <- floor(n / par1))
[1] 5
> arr <- array(NA,dim=c(par1,np+1))
> darr <- array(NA,dim=c(par1,np+1))
> ari <- array(0,dim=par1)
> dx <- diff(x)
> j <- 0
> for (i in 1:n)
+ {
+ j = j + 1
+ ari[j] = ari[j] + 1
+ arr[j,ari[j]] <- x[i]
+ darr[j,ari[j]] <- dx[i]
+ if (j == par1) j = 0
+ }
> ari
 [1] 5 5 5 5 5 5 5 5 5 5 5 5
> arr
      [,1] [,2] [,3] [,4] [,5] [,6]
 [1,] 21.1 20.8 20.6 20.7 18.9   NA
 [2,] 21.0 19.7 20.5 20.2 18.3   NA
 [3,] 20.4 18.3 20.2 19.1 18.4   NA
 [4,] 19.5 17.4 20.6 19.5 19.9   NA
 [5,] 18.6 17.0 19.7 18.7 19.2   NA
 [6,] 18.8 18.1 19.3 18.6 18.5   NA
 [7,] 23.7 23.9 22.8 22.2 20.9   NA
 [8,] 24.8 25.6 23.5 23.2 20.5   NA
 [9,] 25.0 25.3 23.8 23.5 19.4   NA
[10,] 23.6 23.6 22.6 21.3 18.1   NA
[11,] 22.3 21.9 22.0 20.0 17.0   NA
[12,] 21.8 21.4 21.7 18.7 17.0   NA
> darr
      [,1] [,2] [,3] [,4] [,5] [,6]
 [1,] -0.1 -1.1 -0.1 -0.5 -0.6   NA
 [2,] -0.6 -1.4 -0.3 -1.1  0.1   NA
 [3,] -0.9 -0.9  0.4  0.4  1.5   NA
 [4,] -0.9 -0.4 -0.9 -0.8 -0.7   NA
 [5,]  0.2  1.1 -0.4 -0.1 -0.7   NA
 [6,]  4.9  5.8  3.5  3.6  2.4   NA
 [7,]  1.1  1.7  0.7  1.0 -0.4   NA
 [8,]  0.2 -0.3  0.3  0.3 -1.1   NA
 [9,] -1.4 -1.7 -1.2 -2.2 -1.3   NA
[10,] -1.3 -1.7 -0.6 -1.3 -1.1   NA
[11,] -0.5 -0.5 -0.3 -1.3  0.0   NA
[12,] -1.0 -0.8 -1.0  0.2   NA   NA
> arr.mean <- array(NA,dim=par1)
> arr.median <- array(NA,dim=par1)
> arr.midrange <- array(NA,dim=par1)
> for (j in 1:par1)
+ {
+ arr.mean[j] <- mean(arr[j,],na.rm=TRUE)
+ arr.median[j] <- median(arr[j,],na.rm=TRUE)
+ arr.midrange[j] <- (quantile(arr[j,],0.75,na.rm=TRUE) + quantile(arr[j,],0.25,na.rm=TRUE)) / 2
+ }
> overall.mean <- mean(x)
> overall.median <- median(x)
> overall.midrange <- (quantile(x,0.75) + quantile(x,0.25)) / 2
> postscript(file="/var/www/html/rcomp/tmp/1gjqt1229616014.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.mean,type='b',ylab='mean',main='Mean Plot',xlab='Periodic Index')
> mtext(paste('#blocks = ',np))
> abline(overall.mean,0)
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/2rz971229616014.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.median,type='b',ylab='median',main='Median Plot',xlab='Periodic Index')
> mtext(paste('#blocks = ',np))
> abline(overall.median,0)
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/3nvvt1229616014.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.midrange,type='b',ylab='midrange',main='Midrange Plot',xlab='Periodic Index')
> mtext(paste('#blocks = ',np))
> abline(overall.midrange,0)
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/4i6o01229616014.ps",horizontal=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,] 20.6 19.7 18.3 19.5 18.6 18.1 20.9 23.2 23.5  18.1  17.0  17.0
[2,] 20.6 19.7 18.4 19.5 18.6 18.5 22.2 23.2 23.5  21.3  20.0  18.7
[3,] 20.7 20.2 19.1 19.5 18.7 18.6 22.8 23.5 23.8  22.6  21.9  21.4
[4,] 20.8 20.5 20.2 19.9 19.2 18.8 23.7 24.8 25.0  23.6  22.0  21.7
[5,] 21.1 21.0 20.4 19.9 19.7 18.8 23.9 25.6 25.3  23.6  22.3  21.8

$n
 [1] 5 5 5 5 5 5 5 5 5 5 5 5

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 20.55868 19.63472 17.82812 19.21736 18.27604 18.38802 21.74010 22.36944
[2,] 20.84132 20.76528 20.37188 19.78264 19.12396 18.81198 23.85990 24.63056
         [,9]    [,10]    [,11]    [,12]
[1,] 22.74010 20.97483 20.48681 19.28021
[2,] 24.85990 24.22517 23.31319 23.51979

$out
[1] 18.9 18.3 17.4 20.6 17.0 19.3 20.5 19.4

$group
[1] 1 2 4 4 5 6 8 9

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

Warning message:
In bxp(list(stats = c(20.6, 20.6, 20.7, 20.8, 21.1, 19.7, 19.7,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/5g9pz1229616014.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> z <- data.frame(t(darr))
> names(z) <- c(1:par1)
> (boxplot(z,notch=TRUE,col='grey',xlab='Periodic Index',ylab='Value',main='Notched Box Plots - Differenced Periodic Subseries'))
$stats
     [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12]
[1,] -1.1 -1.4 -0.9 -0.9 -0.7  2.4  0.7 -1.1 -2.2  -1.3  -0.5  -1.0
[2,] -0.6 -1.1 -0.9 -0.9 -0.4  3.5  0.7 -0.3 -1.7  -1.3  -0.5  -1.0
[3,] -0.5 -0.6  0.4 -0.8 -0.1  3.6  1.0  0.2 -1.4  -1.3  -0.5  -0.9
[4,] -0.1 -0.3  0.4 -0.7  0.2  4.9  1.1  0.3 -1.3  -1.1  -0.3  -0.3
[5,] -0.1  0.1  1.5 -0.7  0.2  5.8  1.7  0.3 -1.2  -1.1  -0.3   0.2

$n
 [1] 5 5 5 5 5 5 5 5 5 5 5 4

$conf
           [,1]        [,2]       [,3]       [,4]       [,5]     [,6]     [,7]
[1,] -0.8532987 -1.16527798 -0.5185767 -0.9413195 -0.5239585 2.610764 0.717361
[2,] -0.1467013 -0.03472202  1.3185767 -0.6586805  0.3239585 4.589236 1.282639
           [,8]      [,9]     [,10]      [,11]  [,12]
[1,] -0.2239585 -1.682639 -1.441319 -0.6413195 -1.453
[2,]  0.6239585 -1.117361 -1.158681 -0.3586805 -0.347

$out
[1] -0.4  1.1 -0.4 -1.7 -0.6 -1.3  0.0

$group
[1]  4  5  7 10 10 11 11

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

Warning message:
In bxp(list(stats = c(-1.10000000000000, -0.599999999999998, -0.5,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/6fz2y1229616014.ps",horizontal=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]
[1,] 18.60 17.00 19.30 18.60 17.00   NA
[2,] 19.95 18.20 20.35 18.90 18.20   NA
[3,] 21.45 21.10 21.15 20.10 18.70   NA
[4,] 23.65 23.75 22.70 21.75 19.65   NA
[5,] 25.00 25.60 23.80 23.50 20.90   NA

$n
[1] 12 12 12 12 12  0

$conf
         [,1]     [,2]     [,3]     [,4]     [,5] [,6]
[1,] 19.76241 18.56861 20.07815 18.80010 18.03865   NA
[2,] 23.13759 23.63139 22.22185 21.39990 19.36135   NA

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(18.6, 19.95, 21.45, 23.65, 25, 17, 18.2, 21.1,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/7nkpd1229616014.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> z <- data.frame(cbind(arr.mean,arr.median,arr.midrange))
> names(z) <- list('mean','median','midrange')
> (boxplot(z,notch=TRUE,col='grey',ylab='Overall Central Tendency',main='Notched Box Plots'))
$stats
      [,1]  [,2]  [,3]
[1,] 18.64 18.60 18.65
[2,] 19.33 19.30 19.50
[3,] 20.27 21.05 20.45
[4,] 22.27 22.70 22.70
[5,] 23.52 23.80 24.25

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 18.92905 19.49924 18.99046
[2,] 21.61095 22.60076 21.90954

$out
numeric(0)

$group
numeric(0)

$names
[1] "mean"     "median"   "midrange"

Warning message:
In bxp(list(stats = c(18.64, 19.33, 20.27, 22.27, 23.52, 18.6, 19.3,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> system("convert tmp/1gjqt1229616014.ps tmp/1gjqt1229616014.png")
> system("convert tmp/2rz971229616014.ps tmp/2rz971229616014.png")
> system("convert tmp/3nvvt1229616014.ps tmp/3nvvt1229616014.png")
> system("convert tmp/4i6o01229616014.ps tmp/4i6o01229616014.png")
> system("convert tmp/5g9pz1229616014.ps tmp/5g9pz1229616014.png")
> system("convert tmp/6fz2y1229616014.ps tmp/6fz2y1229616014.png")
> system("convert tmp/7nkpd1229616014.ps tmp/7nkpd1229616014.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.218   0.957   1.487