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(8.3,8.4,8.4,8.4,8.6,8.9,8.8,8.3,7.5,7.2,7.5,8.8,9.3,9.3,8.7,8.2,8.3,8.5,8.6,8.6,8.2,8.1,8,8.6,8.7,8.8,8.5,8.4,8.5,8.7,8.7,8.6,8.5,8.3,8.1,8.2,8.1,8.1,7.9,7.9,7.9,8,8,7.9,8,7.7,7.2,7.5,7.3,7,7,7,7.2,7.3,7.1,6.8,6.6,6.2,6.2,6.8)
> par1 = '12'
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Prof. Dr. P. Wessa
> #To cite this work: Wessa P., (2007), Mean Plot (v1.0.1) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_meanplot.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #Technical description: Write here your technical program description
> par1 <- as.numeric(par1)
> (n <- length(x))
[1] 60
> (np <- floor(n / par1))
[1] 5
> 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] 5 5 5 5 5 5 5 5 5 5 5 5
> arr
      [,1] [,2] [,3] [,4] [,5] [,6]
 [1,]  8.3  9.3  8.7  8.1  7.3   NA
 [2,]  8.4  9.3  8.8  8.1  7.0   NA
 [3,]  8.4  8.7  8.5  7.9  7.0   NA
 [4,]  8.4  8.2  8.4  7.9  7.0   NA
 [5,]  8.6  8.3  8.5  7.9  7.2   NA
 [6,]  8.9  8.5  8.7  8.0  7.3   NA
 [7,]  8.8  8.6  8.7  8.0  7.1   NA
 [8,]  8.3  8.6  8.6  7.9  6.8   NA
 [9,]  7.5  8.2  8.5  8.0  6.6   NA
[10,]  7.2  8.1  8.3  7.7  6.2   NA
[11,]  7.5  8.0  8.1  7.2  6.2   NA
[12,]  8.8  8.6  8.2  7.5  6.8   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/freestat/rcomp/tmp/1cta81229038822.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/freestat/rcomp/tmp/2w3qo1229038822.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/freestat/rcomp/tmp/36dtq1229038822.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/freestat/rcomp/tmp/4slhq1229038822.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,]  7.3  8.1  7.9  7.9  7.2  7.3  7.1  7.9  6.6   6.2   6.2   6.8
[2,]  8.1  8.1  7.9  7.9  7.9  8.0  8.0  7.9  7.5   7.2   7.2   7.5
[3,]  8.3  8.4  8.4  8.2  8.3  8.5  8.6  8.3  8.0   7.7   7.5   8.2
[4,]  8.7  8.8  8.5  8.4  8.5  8.7  8.7  8.6  8.2   8.1   8.0   8.6
[5,]  9.3  9.3  8.7  8.4  8.6  8.9  8.8  8.6  8.5   8.3   8.1   8.8

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 7.876042 7.905382 7.976042 7.846701 7.876042 8.005382 8.105382 7.805382
[2,] 8.723958 8.894618 8.823958 8.553299 8.723958 8.994618 9.094618 8.794618
         [,9]    [,10]    [,11]    [,12]
[1,] 7.505382 7.064062 6.934722 7.422743
[2,] 8.494618 8.335938 8.065278 8.977257

$out
[1] 7.0 7.0 7.0 6.8

$group
[1] 2 3 4 8

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

Warning message:
In bxp(list(stats = c(7.3, 8.1, 8.3, 8.7, 9.3, 8.1, 8.1, 8.4, 8.8,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/53ef01229038822.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,]  7.2 8.00 8.10  7.7 6.20   NA
[2,]  7.9 8.20 8.35  7.8 6.70   NA
[3,]  8.4 8.55 8.50  7.9 7.00   NA
[4,]  8.7 8.65 8.70  8.0 7.15   NA
[5,]  8.9 9.30 8.80  8.1 7.30   NA

$n
[1] 12 12 12 12 12  0

$conf
         [,1]     [,2]     [,3]     [,4]     [,5] [,6]
[1,] 8.035115 8.344752 8.340363 7.808779 6.794752   NA
[2,] 8.764885 8.755248 8.659637 7.991221 7.205248   NA

$out
[1] 7.2 7.5

$group
[1] 4 4

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

Warning message:
In bxp(list(stats = c(7.2, 7.9, 8.4, 8.7, 8.9, 8, 8.2, 8.55, 8.65,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/6i3un1229038822.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,] 7.40  7.7 7.60
[2,] 7.87  8.1 7.95
[3,] 8.07  8.3 8.20
[4,] 8.26  8.4 8.35
[5,] 8.34  8.6 8.45

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 7.892118 8.163168 8.017557
[2,] 8.247882 8.436832 8.382443

$out
[1] 7.5

$group
[1] 2

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

Warning message:
In bxp(list(stats = c(7.4, 7.87, 8.07, 8.26, 8.34, 7.7, 8.1, 8.3,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> system("convert tmp/1cta81229038822.ps tmp/1cta81229038822.png")
> system("convert tmp/2w3qo1229038822.ps tmp/2w3qo1229038822.png")
> system("convert tmp/36dtq1229038822.ps tmp/36dtq1229038822.png")
> system("convert tmp/4slhq1229038822.ps tmp/4slhq1229038822.png")
> system("convert tmp/53ef01229038822.ps tmp/53ef01229038822.png")
> system("convert tmp/6i3un1229038822.ps tmp/6i3un1229038822.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.631   1.248   1.843