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(94.10,94.90,96.40,91.10,84.40,86.40,88.00,75.10,109.70,103.00,82.10,68.00,96.40,94.30,90.00,88.00,76.10,82.50,81.40,66.50,97.20,94.10,80.70,70.50,87.80,89.50,99.60,84.20,75.10,92.00,80.80,73.10,99.80,90.00,83.10,72.40,78.80,87.30,91.00,80.10,73.60,86.40,74.50,71.20,92.40,81.50,85.30,69.90)
> par1 = '4'
> #'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] 48
> (np <- floor(n / par1))
[1] 12
> 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] 12 12 12 12
> arr
     [,1] [,2]  [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12] [,13]
[1,] 94.1 84.4 109.7 96.4 76.1 97.2 87.8 75.1 99.8  78.8  73.6  92.4    NA
[2,] 94.9 86.4 103.0 94.3 82.5 94.1 89.5 92.0 90.0  87.3  86.4  81.5    NA
[3,] 96.4 88.0  82.1 90.0 81.4 80.7 99.6 80.8 83.1  91.0  74.5  85.3    NA
[4,] 91.1 75.1  68.0 88.0 66.5 70.5 84.2 73.1 72.4  80.1  71.2  69.9    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/1lcg91225742455.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/2vkn81225742455.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/3m5gl1225742455.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/466u81225742455.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]
[1,]  73.60  81.50 74.5 66.50
[2,]  77.45  86.40 81.1 70.20
[3,]  90.10  89.75 84.2 72.75
[4,]  96.80  94.20 90.5 82.15
[5,] 109.70 103.00 99.6 91.10

$n
[1] 12 12 12 12

$conf
         [,1]     [,2]    [,3]     [,4]
[1,] 81.27434 86.19237 79.9126 67.29952
[2,] 98.92566 93.30763 88.4874 78.20048

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(73.6, 77.45, 90.1, 96.8, 109.7, 81.5, 86.4,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/5hdzu1225742455.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]  [,8]  [,9] [,10] [,11] [,12]
[1,] 91.10 75.10  68.00 88.00 66.50 70.50 84.20 73.10 72.40 78.80 71.20 69.90
[2,] 92.60 79.75  75.05 89.00 71.30 75.60 86.00 74.10 77.75 79.45 72.40 75.70
[3,] 94.50 85.40  92.55 92.15 78.75 87.40 88.65 77.95 86.55 83.70 74.05 83.40
[4,] 95.65 87.20 106.35 95.35 81.95 95.65 94.55 86.40 94.90 89.15 80.45 88.85
[5,] 96.40 88.00 109.70 96.40 82.50 97.20 99.60 92.00 99.80 91.00 86.40 92.40
     [,13]
[1,]    NA
[2,]    NA
[3,]    NA
[4,]    NA
[5,]    NA

$n
 [1] 4 4 4 4 4 4 4 4 4 4 4 4 0

$conf
        [,1]    [,2]    [,3]    [,4]    [,5]     [,6]    [,7]   [,8]     [,9]
[1,] 92.0905 79.5145  67.823 87.1335 70.3365  71.5605 81.8955 68.233  73.0015
[2,] 96.9095 91.2855 117.277 97.1665 87.1635 103.2395 95.4045 87.667 100.0985
      [,10]   [,11]   [,12] [,13]
[1,] 76.037 67.6905 73.0115    NA
[2,] 91.363 80.4095 93.7885    NA

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(91.1, 92.6, 94.5, 95.65, 96.4, 75.1, 79.75,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/6ne041225742455.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,] 75.84167 72.750 75.73750
[2,] 80.95833 78.475 80.74375
[3,] 87.42917 86.975 86.55625
[4,] 89.47083 89.925 88.81875
[5,] 90.15833 90.100 90.27500

$n
[1] 4 4 4

$conf
         [,1]    [,2]    [,3]
[1,] 80.70429 77.9295 80.1770
[2,] 94.15404 96.0205 92.9355

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(75.8416666666667, 80.9583333333333, 87.4291666666667,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> system("convert tmp/1lcg91225742455.ps tmp/1lcg91225742455.png")
> system("convert tmp/2vkn81225742455.ps tmp/2vkn81225742455.png")
> system("convert tmp/3m5gl1225742455.ps tmp/3m5gl1225742455.png")
> system("convert tmp/466u81225742455.ps tmp/466u81225742455.png")
> system("convert tmp/5hdzu1225742455.ps tmp/5hdzu1225742455.png")
> system("convert tmp/6ne041225742455.ps tmp/6ne041225742455.png")
> 
> 
> proc.time()
   user  system elapsed 
  1.301   0.829   1.584