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(7.6,7.4,7.3,7.1,6.9,6.8,7.5,7.6,7.8,8,8.1,8.2,8.3,8.2,8,7.9,7.6,7.6,8.2,8.3,8.4,8.4,8.4,8.6,8.9,8.8,8.3,7.5,7.2,7.5,8.8,9.3,9.3,8.7,8.2,8.3,8.5,8.6,8.6,8.2,8.1,8,8.6,8.7,8.8,8.5,8.4,8.5,8.7,8.7,8.6,8.5,8.3,8.1,8.2,8.1,8.1,7.9,7.9,7.9,8,8,7.9,8,7.7,7.2,7.5,7.3,7,7,7,7.2,7.3,7.1,6.8,6.6,6.2,6.2,6.8,6.9,6.8,6.7)
> 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] 82
> (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] 7 7 7 7 7 7 7 7 7 7 6 6
> arr
      [,1] [,2] [,3] [,4] [,5] [,6] [,7]
 [1,]  7.6  8.3  8.9  8.5  8.7  8.0  7.3
 [2,]  7.4  8.2  8.8  8.6  8.7  8.0  7.1
 [3,]  7.3  8.0  8.3  8.6  8.6  7.9  6.8
 [4,]  7.1  7.9  7.5  8.2  8.5  8.0  6.6
 [5,]  6.9  7.6  7.2  8.1  8.3  7.7  6.2
 [6,]  6.8  7.6  7.5  8.0  8.1  7.2  6.2
 [7,]  7.5  8.2  8.8  8.6  8.2  7.5  6.8
 [8,]  7.6  8.3  9.3  8.7  8.1  7.3  6.9
 [9,]  7.8  8.4  9.3  8.8  8.1  7.0  6.8
[10,]  8.0  8.4  8.7  8.5  7.9  7.0  6.7
[11,]  8.1  8.4  8.2  8.4  7.9  7.0   NA
[12,]  8.2  8.6  8.3  8.5  7.9  7.2   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/html/rcomp/tmp/1dxq11229168868.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/2t55v1229168868.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/3abi91229168868.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/40vxa1229168868.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 7.10 6.80  6.6 6.20  6.2  6.8 6.90  6.8  6.70  7.90  7.20
[2,]  7.8 7.70 7.60  7.3 7.05  7.0  7.5 7.45  7.4  7.45  7.90  7.90
[3,]  8.3 8.20 8.00  7.9 7.60  7.5  8.2 8.10  8.1  8.00  8.15  8.25
[4,]  8.6 8.65 8.45  8.1 7.90  7.8  8.4 8.50  8.6  8.45  8.40  8.50
[5,]  8.9 8.80 8.60  8.5 8.30  8.1  8.8 9.30  9.3  8.70  8.40  8.60

$n
 [1] 7 7 7 7 7 7 7 7 7 7 6 6

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 7.822253 7.632675 7.492394 7.422253 7.092394 7.022253 7.662535 7.472957
[2,] 8.777747 8.767325 8.507606 8.377747 8.107606 7.977747 8.737465 8.727043
        [,9]    [,10]    [,11]   [,12]
[1,] 7.38338 7.402816 7.827484 7.86298
[2,] 8.81662 8.597184 8.472516 8.63702

$out
[1] 7

$group
[1] 11

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

Warning message:
In bxp(list(stats = c(7.3, 7.8, 8.3, 8.6, 8.9, 7.1, 7.7, 8.2, 8.65,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/5hd6l1229168868.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,] 6.80 7.60 7.20  8.0 7.90 7.00  6.2
[2,] 7.20 7.95 7.85  8.3 8.00 7.10  6.6
[3,] 7.55 8.25 8.50  8.5 8.15 7.40  6.8
[4,] 7.90 8.40 8.85  8.6 8.55 7.95  6.9
[5,] 8.20 8.60 9.30  8.8 8.70 8.00  7.3

$n
[1] 12 12 12 12 12 12 10

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]
[1,] 7.230725 8.044752 8.043893 8.363168 7.899141 7.012309 6.650108
[2,] 7.869275 8.455248 8.956107 8.636832 8.400859 7.787691 6.949892

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(6.8, 7.2, 7.55, 7.9, 8.2, 7.6, 7.95, 8.25,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/6v7xf1229168868.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,] 7.428571 7.60 7.4000
[2,] 7.785714 7.95 7.8250
[3,] 7.971429 8.10 7.9875
[4,] 8.071429 8.20 8.1625
[5,] 8.185714 8.30 8.2125

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 7.841112 7.985973 7.833564
[2,] 8.101745 8.214027 8.141436

$out
[1] 7.342857 7.500000

$group
[1] 1 2

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

Warning message:
In bxp(list(stats = c(7.42857142857143, 7.78571428571429, 7.97142857142857,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> system("convert tmp/1dxq11229168868.ps tmp/1dxq11229168868.png")
> system("convert tmp/2t55v1229168868.ps tmp/2t55v1229168868.png")
> system("convert tmp/3abi91229168868.ps tmp/3abi91229168868.png")
> system("convert tmp/40vxa1229168868.ps tmp/40vxa1229168868.png")
> system("convert tmp/5hd6l1229168868.ps tmp/5hd6l1229168868.png")
> system("convert tmp/6v7xf1229168868.ps tmp/6v7xf1229168868.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.072   0.842   1.331