R version 2.8.1 (2008-12-22)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> x <- c(21,19,25,21,23,23,19,18,19,19,22,23,20,14,14,14,15,11,17,16,20,24,23,20,21,19,23,23,23,23,27,26,17,24,26,24,27,27,26,24,23,23,24,17,21,19,22,22,18,16,14,12,14,16,8,3,0,5,1,1,3)
> 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] 61
> (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] 6 5 5 5 5 5 5 5 5 5 5 5
> arr
      [,1] [,2] [,3] [,4] [,5] [,6]
 [1,]   21   20   21   27   18    3
 [2,]   19   14   19   27   16   NA
 [3,]   25   14   23   26   14   NA
 [4,]   21   14   23   24   12   NA
 [5,]   23   15   23   23   14   NA
 [6,]   23   11   23   23   16   NA
 [7,]   19   17   27   24    8   NA
 [8,]   18   16   26   17    3   NA
 [9,]   19   20   17   21    0   NA
[10,]   19   24   24   19    5   NA
[11,]   22   23   26   22    1   NA
[12,]   23   20   24   22    1   NA
> darr
      [,1] [,2] [,3] [,4] [,5] [,6]
 [1,]   -2   -6   -2    0   -2   NA
 [2,]    6    0    4   -1   -2   NA
 [3,]   -4    0    0   -2   -2   NA
 [4,]    2    1    0   -1    2   NA
 [5,]    0   -4    0    0    2   NA
 [6,]   -4    6    4    1   -8   NA
 [7,]   -1   -1   -1   -7   -5   NA
 [8,]    1    4   -9    4   -3   NA
 [9,]    0    4    7   -2    5   NA
[10,]    3   -1    2    3   -4   NA
[11,]    1   -3   -2    0    0   NA
[12,]   -3    1    3   -4    2   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/rcomp/tmp/16dgq1257586301.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/rcomp/tmp/2o26i1257586301.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/rcomp/tmp/3tc3t1257586301.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/rcomp/tmp/4bac31257586301.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,] 18.0   14   14   12   14   11    8   16   17    19    22    20
[2,] 18.0   16   14   14   15   16   17   16   17    19    22    20
[3,] 20.5   19   23   21   23   23   19   17   19    19    22    22
[4,] 21.0   19   25   23   23   23   24   18   20    24    23    23
[5,] 21.0   19   26   24   23   23   27   18   21    24    23    24

$n
 [1] 6 5 5 5 5 5 5 5 5 5 5 5

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 18.56490 16.88021 15.22743 14.64062 17.34722 18.05382 14.05382 15.58681
[2,] 22.43510 21.11979 30.77257 27.35938 28.65278 27.94618 23.94618 18.41319
         [,9]    [,10]    [,11]    [,12]
[1,] 16.88021 15.46701 21.29340 19.88021
[2,] 21.11979 22.53299 22.70660 24.11979

$out
 [1] 27  3 27 26  3  0  5 26  1  1

$group
 [1]  1  1  2  8  8  9 10 11 11 12

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

Warning message:
In bxp(list(stats = c(18, 18, 20.5, 21, 21, 14, 16, 19, 19, 19,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/rcomp/tmp/5l9vx1257586301.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,]   -2   -2   -4   -1    0   -8   -7   -9   -2    -4    -3    -4
[2,]   -2   -1   -2    0    0   -4   -5   -3    0    -1    -2    -3
[3,]   -2    0   -2    1    0    1   -1    1    4     2     0     1
[4,]   -2    4    0    2    0    4   -1    4    5     3     0     2
[5,]   -2    6    0    2    0    6   -1    4    7     3     1     3

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

$conf
     [,1]      [,2]      [,3]      [,4] [,5]     [,6]     [,7]      [,8]
[1,]   -2 -3.532987 -3.413195 -0.413195    0 -4.65278 -3.82639 -3.946182
[2,]   -2  3.532987 -0.586805  2.413195    0  6.65278  1.82639  5.946182
          [,9]    [,10]     [,11]     [,12]
[1,] 0.4670126 -0.82639 -1.413195 -2.532987
[2,] 7.5329874  4.82639  1.413195  4.532987

$out
[1] -6  0 -4  2

$group
[1] 1 1 5 5

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

Warning message:
In bxp(list(stats = c(-2, -2, -2, -2, -2, -2, -1, 0, 4, 6, -4, -2,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/rcomp/tmp/600s41257586301.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 11.0   19 17.0    0    3
[2,]   19 14.0   22 21.5    2    3
[3,]   21 16.5   23 23.0   10    3
[4,]   23 20.0   25 25.0   15    3
[5,]   25 24.0   27 27.0   18    3

$n
[1] 12 12 12 12 12  1

$conf
         [,1]     [,2]     [,3]     [,4]      [,5] [,6]
[1,] 19.17557 13.76336 21.63168 21.40363  4.070613    3
[2,] 22.82443 19.23664 24.36832 24.59637 15.929387    3

$out
[1] 17

$group
[1] 3

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

Warning message:
In bxp(list(stats = c(18, 19, 21, 23, 25, 11, 14, 16.5, 20, 24,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/rcomp/tmp/7w47c1257586301.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,] 18.0 17.00 17.0
[2,] 18.1 19.00 18.5
[3,] 18.8 20.75 19.5
[4,] 19.1 22.50 21.0
[5,] 20.4 23.00 22.5

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 18.34389 19.15363 18.35973
[2,] 19.25611 22.34637 20.64027

$out
[1] 16.0 15.4

$group
[1] 1 1

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

Warning message:
In bxp(list(stats = c(18, 18.1, 18.8, 19.1, 20.4, 17, 19, 20.75,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> system("convert tmp/16dgq1257586301.ps tmp/16dgq1257586301.png")
> system("convert tmp/2o26i1257586301.ps tmp/2o26i1257586301.png")
> system("convert tmp/3tc3t1257586301.ps tmp/3tc3t1257586301.png")
> system("convert tmp/4bac31257586301.ps tmp/4bac31257586301.png")
> system("convert tmp/5l9vx1257586301.ps tmp/5l9vx1257586301.png")
> system("convert tmp/600s41257586301.ps tmp/600s41257586301.png")
> system("convert tmp/7w47c1257586301.ps tmp/7w47c1257586301.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.590   1.450   2.314