R version 3.0.2 (2013-09-25) -- "Frisbee Sailing"
Copyright (C) 2013 The R Foundation for Statistical Computing
Platform: i686-pc-linux-gnu (32-bit)

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> x <- c(500.48,500.49,500.50,500.51,500.52,500.53,500.54,500.55,500.56,500.57,500.58,500.59,500.60,500.61,500.62,500.63,500.64,500.65,500.66,500.67,500.68,500.69,500.70,500.71)
> 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] 24
> (np <- floor(n / par1))
[1] 2
> 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] 2 2 2 2 2 2 2 2 2 2 2 2
> arr
        [,1]   [,2] [,3]
 [1,] 500.48 500.60   NA
 [2,] 500.49 500.61   NA
 [3,] 500.50 500.62   NA
 [4,] 500.51 500.63   NA
 [5,] 500.52 500.64   NA
 [6,] 500.53 500.65   NA
 [7,] 500.54 500.66   NA
 [8,] 500.55 500.67   NA
 [9,] 500.56 500.68   NA
[10,] 500.57 500.69   NA
[11,] 500.58 500.70   NA
[12,] 500.59 500.71   NA
> darr
      [,1] [,2] [,3]
 [1,] 0.01 0.01   NA
 [2,] 0.01 0.01   NA
 [3,] 0.01 0.01   NA
 [4,] 0.01 0.01   NA
 [5,] 0.01 0.01   NA
 [6,] 0.01 0.01   NA
 [7,] 0.01 0.01   NA
 [8,] 0.01 0.01   NA
 [9,] 0.01 0.01   NA
[10,] 0.01 0.01   NA
[11,] 0.01 0.01   NA
[12,] 0.01   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/1jd0p1384972137.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/2597u1384972137.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/3ewwc1384972137.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/4jqv81384972137.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]
[1,] 500.48 500.49 500.50 500.51 500.52 500.53 500.54 500.55 500.56 500.57
[2,] 500.48 500.49 500.50 500.51 500.52 500.53 500.54 500.55 500.56 500.57
[3,] 500.54 500.55 500.56 500.57 500.58 500.59 500.60 500.61 500.62 500.63
[4,] 500.60 500.61 500.62 500.63 500.64 500.65 500.66 500.67 500.68 500.69
[5,] 500.60 500.61 500.62 500.63 500.64 500.65 500.66 500.67 500.68 500.69
      [,11]  [,12]
[1,] 500.58 500.59
[2,] 500.58 500.59
[3,] 500.64 500.65
[4,] 500.70 500.71
[5,] 500.70 500.71

$n
 [1] 2 2 2 2 2 2 2 2 2 2 2 2

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 500.4059 500.4159 500.4259 500.4359 500.4459 500.4559 500.4659 500.4759
[2,] 500.6741 500.6841 500.6941 500.7041 500.7141 500.7241 500.7341 500.7441
         [,9]    [,10]    [,11]    [,12]
[1,] 500.4859 500.4959 500.5059 500.5159
[2,] 500.7541 500.7641 500.7741 500.7841

$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(500.48, 500.48, 500.54, 500.6, 500.6, 500.49,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/5gwg91384972137.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,] 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01  0.01  0.01  0.01
[2,] 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01  0.01  0.01  0.01
[3,] 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01  0.01  0.01  0.01
[4,] 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01  0.01  0.01  0.01
[5,] 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01  0.01  0.01  0.01

$n
 [1] 2 2 2 2 2 2 2 2 2 2 2 1

$conf
     [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12]
[1,] 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01  0.01  0.01  0.01
[2,] 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01  0.01  0.01  0.01

$out
numeric(0)

$group
numeric(0)

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

> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6lfc51384972137.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]
[1,] 500.480 500.600   NA
[2,] 500.505 500.625   NA
[3,] 500.535 500.655   NA
[4,] 500.565 500.685   NA
[5,] 500.590 500.710   NA

$n
[1] 12 12  0

$conf
         [,1]     [,2] [,3]
[1,] 500.5076 500.6276   NA
[2,] 500.5624 500.6824   NA

$out
numeric(0)

$group
numeric(0)

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

> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/7nht41384972137.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,] 500.540 500.540 500.540
[2,] 500.565 500.565 500.565
[3,] 500.595 500.595 500.595
[4,] 500.625 500.625 500.625
[5,] 500.650 500.650 500.650

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 500.5676 500.5676 500.5676
[2,] 500.6224 500.6224 500.6224

$out
numeric(0)

$group
numeric(0)

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

> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1jd0p1384972137.ps tmp/1jd0p1384972137.png",intern=TRUE))
character(0)
> try(system("convert tmp/2597u1384972137.ps tmp/2597u1384972137.png",intern=TRUE))
character(0)
> try(system("convert tmp/3ewwc1384972137.ps tmp/3ewwc1384972137.png",intern=TRUE))
character(0)
> try(system("convert tmp/4jqv81384972137.ps tmp/4jqv81384972137.png",intern=TRUE))
character(0)
> try(system("convert tmp/5gwg91384972137.ps tmp/5gwg91384972137.png",intern=TRUE))
character(0)
> try(system("convert tmp/6lfc51384972137.ps tmp/6lfc51384972137.png",intern=TRUE))
character(0)
> try(system("convert tmp/7nht41384972137.ps tmp/7nht41384972137.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  3.347   0.722   4.057