R version 3.3.2 (2016-10-31) -- "Sincere Pumpkin Patch"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- c(10,11,11,12,13,13,15,15,16,16,17,18,18,18,19,19,20,20,21,22,24,24,24,24,25,25,25,26,26,28,29,29,30,30,30,31,31,32,32,33,36,36,38,38,39,40,41,41)
> par1 = '12'
> par1 <- '12'
> #'GNU S' R Code compiled by R2WASP v. 1.2.327 (Mon, 30 Nov 2015 07:01:18 +0000)
> #Author: root
> #To cite this work: Wessa P., (2015), Mean Plot (v1.0.5) 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)
> x <- na.omit(x)
> (n <- length(x))
[1] 48
> (np <- floor(n / par1))
[1] 4
> 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] 4 4 4 4 4 4 4 4 4 4 4 4
> arr
      [,1] [,2] [,3] [,4] [,5]
 [1,]   10   18   25   31   NA
 [2,]   11   18   25   32   NA
 [3,]   11   19   25   32   NA
 [4,]   12   19   26   33   NA
 [5,]   13   20   26   36   NA
 [6,]   13   20   28   36   NA
 [7,]   15   21   29   38   NA
 [8,]   15   22   29   38   NA
 [9,]   16   24   30   39   NA
[10,]   16   24   30   40   NA
[11,]   17   24   30   41   NA
[12,]   18   24   31   41   NA
> darr
      [,1] [,2] [,3] [,4] [,5]
 [1,]    1    0    0    1   NA
 [2,]    0    1    0    0   NA
 [3,]    1    0    1    1   NA
 [4,]    1    1    0    3   NA
 [5,]    0    0    2    0   NA
 [6,]    2    1    1    2   NA
 [7,]    0    1    0    0   NA
 [8,]    1    2    1    1   NA
 [9,]    0    0    0    1   NA
[10,]    1    0    0    1   NA
[11,]    1    0    1    0   NA
[12,]    0    1    0   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/132oe1489495071.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/2lhww1489495071.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/3un0e1489495071.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/4kkud1489495071.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] [,12]
[1,] 10.0 11.0 11.0 12.0 13.0 13.0 15.0 15.0 16.0    16  17.0  18.0
[2,] 14.0 14.5 15.0 15.5 16.5 16.5 18.0 18.5 20.0    20  20.5  21.0
[3,] 21.5 21.5 22.0 22.5 23.0 24.0 25.0 25.5 27.0    27  27.0  27.5
[4,] 28.0 28.5 28.5 29.5 31.0 32.0 33.5 33.5 34.5    35  35.5  36.0
[5,] 31.0 32.0 32.0 33.0 36.0 36.0 38.0 38.0 39.0    40  41.0  41.0

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

$conf
      [,1]  [,2]   [,3]  [,4]   [,5]   [,6]   [,7]  [,8]   [,9] [,10] [,11]
[1,] 10.44 10.44 11.335 11.44 11.545 11.755 12.755 13.65 15.545 15.15 15.15
[2,] 32.56 32.56 32.665 33.56 34.455 36.245 37.245 37.35 38.455 38.85 38.85
     [,12]
[1,] 15.65
[2,] 39.35

$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(10, 14, 21.5, 28, 31, 11, 14.5, 21.5, 28.5,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/58wo51489495071.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,]  0.0  0.0  0.0  0.0    0  1.0  0.0  1.0  0.0   0.0   0.0   0.0
[2,]  0.0  0.0  0.5  0.5    0  1.0  0.0  1.0  0.0   0.0   0.0   0.0
[3,]  0.5  0.0  1.0  1.0    0  1.5  0.0  1.0  0.0   0.5   0.5   0.0
[4,]  1.0  0.5  1.0  2.0    1  2.0  0.5  1.5  0.5   1.0   1.0   0.5
[5,]  1.0  1.0  1.0  3.0    2  2.0  1.0  2.0  1.0   1.0   1.0   1.0

$n
 [1] 4 4 4 4 4 4 4 4 4 4 4 3

$conf
      [,1]   [,2]  [,3]   [,4]  [,5] [,6]   [,7]  [,8]   [,9] [,10] [,11]
[1,] -0.29 -0.395 0.605 -0.185 -0.79 0.71 -0.395 0.605 -0.395 -0.29 -0.29
[2,]  1.29  0.395 1.395  2.185  0.79 2.29  0.395 1.395  0.395  1.29  1.29
          [,12]
[1,] -0.4561067
[2,]  0.4561067

$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(0, 0, 0.5, 1, 1, 0, 0, 0, 0.5, 1, 0, 0.5,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6dtse1489495071.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]
[1,] 10.0 18.0 25.0 31.0   NA
[2,] 11.5 19.0 25.5 32.5   NA
[3,] 14.0 20.5 28.5 37.0   NA
[4,] 16.0 24.0 30.0 39.5   NA
[5,] 18.0 24.0 31.0 41.0   NA

$n
[1] 12 12 12 12  0

$conf
         [,1]     [,2]     [,3]     [,4] [,5]
[1,] 11.94752 18.21947 26.44752 33.80725   NA
[2,] 16.05248 22.78053 30.55248 40.19275   NA

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(10, 11.5, 14, 16, 18, 18, 19, 20.5, 24, 24,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/7q6hc1489495071.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,] 21.000 21.50 21.2500
[2,] 22.125 22.25 22.1875
[3,] 25.000 24.50 24.7500
[4,] 27.375 27.00 27.1875
[5,] 28.500 27.50 28.0000

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 22.60544 22.33349 22.46947
[2,] 27.39456 26.66651 27.03053

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(21, 22.125, 25, 27.375, 28.5, 21.5, 22.25,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/132oe1489495071.ps tmp/132oe1489495071.png",intern=TRUE))
character(0)
> try(system("convert tmp/2lhww1489495071.ps tmp/2lhww1489495071.png",intern=TRUE))
character(0)
> try(system("convert tmp/3un0e1489495071.ps tmp/3un0e1489495071.png",intern=TRUE))
character(0)
> try(system("convert tmp/4kkud1489495071.ps tmp/4kkud1489495071.png",intern=TRUE))
character(0)
> try(system("convert tmp/58wo51489495071.ps tmp/58wo51489495071.png",intern=TRUE))
character(0)
> try(system("convert tmp/6dtse1489495071.ps tmp/6dtse1489495071.png",intern=TRUE))
character(0)
> try(system("convert tmp/7q6hc1489495071.ps tmp/7q6hc1489495071.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.675   0.188   2.932