R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- c(27.88,28.06,28.08,28.12,28.11,28.18,28.2,28.37,28.64,28.75,28.97,29.08,29.16,29.24,29.36,29.35,29.43,29.49,29.61,29.66,29.75,29.74,29.97,30.02,30.09,30.16,30.33,30.41,30.44,30.45,30.46,30.51,30.54,30.82,30.88,30.89,31.13,31.41,31.47,31.56,31.62,31.65,31.79,31.98,32.14,32.32,32.5,32.55,32.66,32.68,32.72,32.8,32.93,32.96,32.98,33.09,33.46,33.65,33.82,33.83,33.92,33.87,34.03,34.11,34.29,34.44,34.64,34.77,35.01,35.19,35.32,35.35)
> par1 = '12'
> par1 <- '12'
> #'GNU S' R Code compiled by R2WASP v. 1.2.291 ()
> #Author: root
> #To cite this work: Wessa P., (2012), Mean Plot (v1.0.4) 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
> #
> par1 <- as.numeric(par1)
> (n <- length(x))
[1] 72
> (np <- floor(n / par1))
[1] 6
> arr <- array(NA,dim=c(par1,np+1))
> darr <- array(NA,dim=c(par1,np+1))
> ari <- array(0,dim=par1)
> dx <- diff(x)
> j <- 0
> for (i in 1:n)
+ {
+ j = j + 1
+ ari[j] = ari[j] + 1
+ arr[j,ari[j]] <- x[i]
+ darr[j,ari[j]] <- dx[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,] 27.88 29.16 30.09 31.13 32.66 33.92   NA
 [2,] 28.06 29.24 30.16 31.41 32.68 33.87   NA
 [3,] 28.08 29.36 30.33 31.47 32.72 34.03   NA
 [4,] 28.12 29.35 30.41 31.56 32.80 34.11   NA
 [5,] 28.11 29.43 30.44 31.62 32.93 34.29   NA
 [6,] 28.18 29.49 30.45 31.65 32.96 34.44   NA
 [7,] 28.20 29.61 30.46 31.79 32.98 34.64   NA
 [8,] 28.37 29.66 30.51 31.98 33.09 34.77   NA
 [9,] 28.64 29.75 30.54 32.14 33.46 35.01   NA
[10,] 28.75 29.74 30.82 32.32 33.65 35.19   NA
[11,] 28.97 29.97 30.88 32.50 33.82 35.32   NA
[12,] 29.08 30.02 30.89 32.55 33.83 35.35   NA
> darr
       [,1]  [,2] [,3] [,4] [,5]  [,6] [,7]
 [1,]  0.18  0.08 0.07 0.28 0.02 -0.05   NA
 [2,]  0.02  0.12 0.17 0.06 0.04  0.16   NA
 [3,]  0.04 -0.01 0.08 0.09 0.08  0.08   NA
 [4,] -0.01  0.08 0.03 0.06 0.13  0.18   NA
 [5,]  0.07  0.06 0.01 0.03 0.03  0.15   NA
 [6,]  0.02  0.12 0.01 0.14 0.02  0.20   NA
 [7,]  0.17  0.05 0.05 0.19 0.11  0.13   NA
 [8,]  0.27  0.09 0.03 0.16 0.37  0.24   NA
 [9,]  0.11 -0.01 0.28 0.18 0.19  0.18   NA
[10,]  0.22  0.23 0.06 0.18 0.17  0.13   NA
[11,]  0.11  0.05 0.01 0.05 0.01  0.03   NA
[12,]  0.08  0.07 0.24 0.11 0.09    NA   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/wessaorg/rcomp/tmp/1xl451413825477.ps",horizontal=F,onefile=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/wessaorg/rcomp/tmp/2zh7x1413825477.ps",horizontal=F,onefile=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/wessaorg/rcomp/tmp/3e36x1413825477.ps",horizontal=F,onefile=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/wessaorg/rcomp/tmp/4elt71413825477.ps",horizontal=F,onefile=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]
[1,] 27.88 28.060 28.08 28.120 28.11 28.18 28.200 28.370 28.64 28.75 28.97
[2,] 29.16 29.240 29.36 29.350 29.43 29.49 29.610 29.660 29.75 29.74 29.97
[3,] 30.61 30.785 30.90 30.985 31.03 31.05 31.125 31.245 31.34 31.57 31.69
[4,] 32.66 32.680 32.72 32.800 32.93 32.96 32.980 33.090 33.46 33.65 33.82
[5,] 33.92 33.870 34.03 34.110 34.29 34.44 34.640 34.770 35.01 35.19 35.32
     [,12]
[1,] 29.08
[2,] 30.02
[3,] 31.72
[4,] 33.83
[5,] 35.35

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 28.35239 28.56609 28.73269 28.75964 28.77239 28.81174 28.95124 29.03254
[2,] 32.86761 33.00391 33.06731 33.21036 33.28761 33.28826 33.29876 33.45746
         [,9]    [,10]    [,11]    [,12]
[1,] 28.94693 29.04792 29.20663 29.26243
[2,] 33.73307 34.09208 34.17337 34.17757

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(27.88, 29.16, 30.61, 32.66, 33.92, 28.06,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/5fb4i1413825477.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> z <- data.frame(t(darr))
> names(z) <- c(1:par1)
> (boxplot(z,notch=TRUE,col='grey',xlab='Periodic Index',ylab='Value',main='Notched Box Plots - Differenced Periodic Subseries'))
$stats
       [,1] [,2]  [,3]  [,4]  [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12]
[1,] -0.050 0.02 -0.01 -0.01 0.010 0.01 0.05 0.03 0.11 0.060  0.01  0.07
[2,]  0.020 0.04  0.04  0.03 0.030 0.02 0.05 0.09 0.11 0.130  0.01  0.08
[3,]  0.075 0.09  0.08  0.07 0.045 0.07 0.12 0.20 0.18 0.175  0.04  0.09
[4,]  0.180 0.16  0.08  0.13 0.070 0.14 0.17 0.27 0.19 0.220  0.05  0.11
[5,]  0.280 0.17  0.09  0.18 0.070 0.20 0.19 0.37 0.28 0.230  0.11  0.11

$n
 [1] 6 6 6 6 6 6 6 6 6 6 6 5

$conf
            [,1]       [,2]       [,3]       [,4]       [,5]         [,6]
[1,] -0.02820517 0.01259612 0.05419871 0.00549677 0.01919871 -0.007403876
[2,]  0.17820517 0.16740388 0.10580129 0.13450323 0.07080129  0.147403876
           [,7]       [,8]      [,9]     [,10]      [,11]      [,12]
[1,] 0.04259612 0.08389419 0.1283974 0.1169471 0.01419871 0.06880208
[2,] 0.19740388 0.31610581 0.2316026 0.2330529 0.06580129 0.11119792

$out
[1]  0.15 -0.01  0.24

$group
[1]  5  9 12

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

Warning message:
In bxp(list(stats = c(-0.0500000000000043, 0.0200000000000031, 0.0749999999999993,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6dtvk1413825477.ps",horizontal=F,onefile=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,] 27.880 29.160 30.090 31.130 32.660 33.87   NA
[2,] 28.095 29.355 30.370 31.515 32.760 34.07   NA
[3,] 28.190 29.550 30.455 31.720 32.970 34.54   NA
[4,] 28.695 29.745 30.680 32.230 33.555 35.10   NA
[5,] 29.080 30.020 30.890 32.550 33.830 35.35   NA

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

$conf
         [,1]     [,2]     [,3]     [,4]    [,5]     [,6] [,7]
[1,] 27.91634 29.37212 30.31361 31.39388 32.6074 34.07021   NA
[2,] 28.46366 29.72788 30.59639 32.04612 33.3326 35.00979   NA

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(27.88, 28.095, 28.19, 28.695, 29.08, 29.16,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/7l5s61413825477.ps",horizontal=F,onefile=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,] 30.80667 30.6100 30.83500
[2,] 31.02833 30.9425 31.02875
[3,] 31.23750 31.0875 31.21687
[4,] 31.66750 31.4550 31.60125
[5,] 31.95333 31.7200 31.87375

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 30.94597 30.85375 30.95575
[2,] 31.52903 31.32125 31.47800

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(30.8066666666667, 31.0283333333333, 31.2375,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1xl451413825477.ps tmp/1xl451413825477.png",intern=TRUE))
character(0)
> try(system("convert tmp/2zh7x1413825477.ps tmp/2zh7x1413825477.png",intern=TRUE))
character(0)
> try(system("convert tmp/3e36x1413825477.ps tmp/3e36x1413825477.png",intern=TRUE))
character(0)
> try(system("convert tmp/4elt71413825477.ps tmp/4elt71413825477.png",intern=TRUE))
character(0)
> try(system("convert tmp/5fb4i1413825477.ps tmp/5fb4i1413825477.png",intern=TRUE))
character(0)
> try(system("convert tmp/6dtvk1413825477.ps tmp/6dtvk1413825477.png",intern=TRUE))
character(0)
> try(system("convert tmp/7l5s61413825477.ps tmp/7l5s61413825477.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.505   0.405   2.933