R version 2.7.2 (2008-08-25)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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> x <- c(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)
> par1 = '15'
> #'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] 65
> (np <- floor(n / par1))
[1] 4
> 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 4 4 4 4 4 4 4 4 4 4
> arr
      [,1] [,2] [,3] [,4] [,5]
 [1,]  8.3  7.5  8.6  7.9  7.3
 [2,]  8.2  7.2  8.7  7.9  7.1
 [3,]  8.0  7.5  8.8  7.9  6.8
 [4,]  7.9  8.8  8.5  8.0  6.6
 [5,]  7.6  9.3  8.4  8.0  6.2
 [6,]  7.6  9.3  8.5  7.9   NA
 [7,]  8.2  8.7  8.7  8.0   NA
 [8,]  8.3  8.2  8.7  7.7   NA
 [9,]  8.4  8.3  8.6  7.2   NA
[10,]  8.4  8.5  8.5  7.5   NA
[11,]  8.4  8.6  8.3  7.3   NA
[12,]  8.6  8.6  8.1  7.0   NA
[13,]  8.9  8.2  8.2  7.0   NA
[14,]  8.8  8.1  8.1  7.0   NA
[15,]  8.3  8.0  8.1  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/freestat/rcomp/tmp/1p8b51225415666.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/28gyj1225415666.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/3q8kk1225415666.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/4tuz91225415666.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] [,13] [,14]
[1,]  7.3  7.1  6.8  7.9  7.6 7.60 8.00 7.70 7.20  7.50  7.30  7.00  7.00  7.00
[2,]  7.5  7.2  7.5  7.9  7.6 7.75 8.10 7.95 7.75  7.95  7.80  7.55  7.60  7.55
[3,]  7.9  7.9  7.9  8.0  8.0 8.20 8.45 8.25 8.35  8.45  8.35  8.35  8.20  8.10
[4,]  8.3  8.2  8.0  8.5  8.4 8.90 8.70 8.50 8.50  8.50  8.50  8.60  8.55  8.45
[5,]  8.6  8.7  8.0  8.8  9.3 9.30 8.70 8.70 8.60  8.50  8.60  8.60  8.90  8.80
     [,15]
[1,]  7.20
[2,]  7.60
[3,]  8.05
[4,]  8.20
[5,]  8.30

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]   [,6]  [,7]   [,8]   [,9]
[1,] 7.334722 7.193403 7.546701 7.576042 7.434722 7.2915 7.976 7.8155 7.7575
[2,] 8.465278 8.606597 8.253299 8.423958 8.565278 9.1085 8.924 8.6845 8.9425
      [,10] [,11]  [,12]  [,13] [,14] [,15]
[1,] 8.0155 7.797 7.5205 7.4495 7.389 7.576
[2,] 8.8845 8.903 9.1795 8.9505 8.811 8.524

$out
[1] 8.8 6.6 6.2

$group
[1] 3 4 5

$names
 [1] "1"  "2"  "3"  "4"  "5"  "6"  "7"  "8"  "9"  "10" "11" "12" "13" "14" "15"

Warning message:
In bxp(list(stats = c(7.3, 7.5, 7.9, 8.3, 8.6, 7.1, 7.2, 7.9, 8.2,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/freestat/rcomp/tmp/5sdka1225415666.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]
[1,]  7.9 7.20 8.10  7.0  6.2
[2,]  8.1 8.05 8.25  7.2  6.6
[3,]  8.3 8.30 8.50  7.7  6.8
[4,]  8.4 8.65 8.65  7.9  7.1
[5,]  8.8 9.30 8.80  8.0  7.3

$n
[1] 15 15 15 15  5

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]
[1,] 8.177614 8.055227 8.336818 7.414432 6.446701
[2,] 8.422386 8.544773 8.663182 7.985568 7.153299

$out
[1] 7.6 7.6 8.9

$group
[1] 1 1 1

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

Warning message:
In bxp(list(stats = c(7.9, 8.1, 8.3, 8.4, 8.8, 7.2, 8.05, 8.3, 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/61x6p1225415666.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,] 7.8000 7.90 7.70000
[2,] 7.9100 8.00 7.98750
[3,] 8.0750 8.20 8.20000
[4,] 8.1875 8.35 8.24375
[5,] 8.4000 8.45 8.42500

$n
[1] 15 15 15

$conf
         [,1]     [,2]     [,3]
[1,] 7.961793 8.057216 8.095462
[2,] 8.188207 8.342784 8.304538

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(7.8, 7.91, 8.075, 8.1875, 8.4, 7.9, 8, 8.2,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> system("convert tmp/1p8b51225415666.ps tmp/1p8b51225415666.png")
> system("convert tmp/28gyj1225415666.ps tmp/28gyj1225415666.png")
> system("convert tmp/3q8kk1225415666.ps tmp/3q8kk1225415666.png")
> system("convert tmp/4tuz91225415666.ps tmp/4tuz91225415666.png")
> system("convert tmp/5sdka1225415666.ps tmp/5sdka1225415666.png")
> system("convert tmp/61x6p1225415666.ps tmp/61x6p1225415666.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.932   1.260   2.157