R version 2.5.1 (2007-06-27)
Copyright (C) 2007 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> x <- c(8.5,8.5,8.5,8.6,8.7,8.7,8.7,8.8,8.8,8.8,8.9,8.9,8.9,8.9,8.9,8.9,8.9,8.9,8.9,8.9,8.9,9,9,9,9,9,9,9,9.1,9.1,9.1,9.1,9.1,9.1,9,9,9,8.9,8.9,8.9,8.8,8.9,8.9,8.8,8.8,8.8,8.6,8.5,8.5,8.5,8.5,8.5,8.3,8.2,8.2,8.1,8,7.9,7.9,7.8,7.8,7.6,7.5,7.5,7.3,7.2,7.1,6.9,6.9,6.8,6.8,6.7)
> 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] 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  8.9  9.0  9.0  8.5  7.8   NA
 [2,]  8.5  8.9  9.0  8.9  8.5  7.6   NA
 [3,]  8.5  8.9  9.0  8.9  8.5  7.5   NA
 [4,]  8.6  8.9  9.0  8.9  8.5  7.5   NA
 [5,]  8.7  8.9  9.1  8.8  8.3  7.3   NA
 [6,]  8.7  8.9  9.1  8.9  8.2  7.2   NA
 [7,]  8.7  8.9  9.1  8.9  8.2  7.1   NA
 [8,]  8.8  8.9  9.1  8.8  8.1  6.9   NA
 [9,]  8.8  8.9  9.1  8.8  8.0  6.9   NA
[10,]  8.8  9.0  9.1  8.8  7.9  6.8   NA
[11,]  8.9  9.0  9.0  8.6  7.9  6.8   NA
[12,]  8.9  9.0  9.0  8.5  7.8  6.7   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/13fcz1193404730.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/2rih71193404730.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/3vm4q1193404730.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/4e8vt1193404730.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,]  7.8  8.5  8.5 8.50 8.30  7.2  8.2  6.9  6.9   6.8  6.80   6.7
[2,]  8.5  8.5  8.5 8.50 8.30  8.2  8.2  8.1  8.0   7.9  7.90   7.8
[3,]  8.7  8.7  8.7 8.75 8.75  8.8  8.8  8.8  8.8   8.8  8.75   8.7
[4,]  9.0  8.9  8.9 8.90 8.90  8.9  8.9  8.9  8.9   9.0  9.00   9.0
[5,]  9.0  9.0  9.0 9.00 9.10  9.1  9.1  9.1  9.1   9.1  9.00   9.0

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

$conf
         [,1]     [,2]     [,3]     [,4]    [,5]     [,6]     [,7]     [,8]
[1,] 8.377484 8.441987 8.441987 8.491987 8.36298 8.348477 8.348477 8.283974
[2,] 9.022516 8.958013 8.958013 9.008013 9.13702 9.251523 9.251523 9.316026
         [,9]    [,10]    [,11]    [,12]
[1,] 8.219471 8.090464 8.040464 7.925961
[2,] 9.380529 9.509536 9.459536 9.474039

$out
[1] 7.6 7.5 7.5 7.3 7.1

$group
[1] 2 3 4 5 7

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

Warning message:
some notches went outside hinges ('box'): maybe set notch=FALSE in: bxp(list(stats = c(7.8, 8.5, 8.7, 9, 9, 8.5, 8.5, 8.7, 8.9, 9,  
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/53haq1193404730.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] [,7]
[1,] 8.50 8.90 9.00 8.80 7.80 6.70   NA
[2,] 8.55 8.90 9.00 8.80 7.95 6.85   NA
[3,] 8.70 8.90 9.05 8.85 8.20 7.15   NA
[4,] 8.80 8.95 9.10 8.90 8.50 7.50   NA
[5,] 8.90 9.00 9.10 9.00 8.50 7.80   NA

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

$conf
         [,1]     [,2]    [,3]    [,4]     [,5]    [,6] [,7]
[1,] 8.585973 8.877195 9.00439 8.80439 7.949141 6.85353   NA
[2,] 8.814027 8.922805 9.09561 8.89561 8.450859 7.44647   NA

$out
[1] 8.6 8.5

$group
[1] 4 4

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

Warning message:
some notches went outside hinges ('box'): maybe set notch=FALSE in: bxp(list(stats = c(8.5, 8.55, 8.7, 8.8, 8.9, 8.9, 8.9, 8.9, 8.95,  
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/6lv0h1193404730.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,] 8.316667 8.70 8.4750
[2,] 8.408333 8.70 8.5375
[3,] 8.491667 8.75 8.6125
[4,] 8.558333 8.80 8.7000
[5,] 8.616667 8.80 8.7375

$n
[1] 12 12 12

$conf
         [,1]    [,2]     [,3]
[1,] 8.423251 8.70439 8.538383
[2,] 8.560083 8.79561 8.686617

$out
numeric(0)

$group
numeric(0)

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

Warning message:
some notches went outside hinges ('box'): maybe set notch=FALSE in: bxp(list(stats = c(8.31666666666667, 8.40833333333333, 8.49166666666667,  
> dev.off()
null device 
          1 
> 
> system("convert tmp/13fcz1193404730.ps tmp/13fcz1193404730.png")
> system("convert tmp/2rih71193404730.ps tmp/2rih71193404730.png")
> system("convert tmp/3vm4q1193404730.ps tmp/3vm4q1193404730.png")
> system("convert tmp/4e8vt1193404730.ps tmp/4e8vt1193404730.png")
> system("convert tmp/53haq1193404730.ps tmp/53haq1193404730.png")
> system("convert tmp/6lv0h1193404730.ps tmp/6lv0h1193404730.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.398   0.861   1.647