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(831.5,831,830,828.4,828.1,827.6,828.2,828.2,828.7,830.5,831,831.9,832.2,831.9,830.6,829.7,828.8,826.7,825.8,825.4,825,825.6,824.6,824.5,822.6,822,821.2,820.4,819.4,819.7,818.2,817.7,817.5,817.7,817.5,816.9,820.3,819.7,819.4,818.6,818.2,817.6,817.3,816.7,817,817.6,817.8,817.8,820.9,820.7,820.6,820.8,820.4,820.2,819.8,819.6,819.6,819.8,819.9,820.3,822.9,821.9,820.6,818.9,817.3,815.6,813.8,812.1,810.8,809.6,808.7,807.3)
> 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] 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,] 831.5 832.2 822.6 820.3 820.9 822.9   NA
 [2,] 831.0 831.9 822.0 819.7 820.7 821.9   NA
 [3,] 830.0 830.6 821.2 819.4 820.6 820.6   NA
 [4,] 828.4 829.7 820.4 818.6 820.8 818.9   NA
 [5,] 828.1 828.8 819.4 818.2 820.4 817.3   NA
 [6,] 827.6 826.7 819.7 817.6 820.2 815.6   NA
 [7,] 828.2 825.8 818.2 817.3 819.8 813.8   NA
 [8,] 828.2 825.4 817.7 816.7 819.6 812.1   NA
 [9,] 828.7 825.0 817.5 817.0 819.6 810.8   NA
[10,] 830.5 825.6 817.7 817.6 819.8 809.6   NA
[11,] 831.0 824.6 817.5 817.8 819.9 808.7   NA
[12,] 831.9 824.5 816.9 817.8 820.3 807.3   NA
> darr
      [,1] [,2] [,3] [,4] [,5] [,6] [,7]
 [1,] -0.5 -0.3 -0.6 -0.6 -0.2 -1.0   NA
 [2,] -1.0 -1.3 -0.8 -0.3 -0.1 -1.3   NA
 [3,] -1.6 -0.9 -0.8 -0.8  0.2 -1.7   NA
 [4,] -0.3 -0.9 -1.0 -0.4 -0.4 -1.6   NA
 [5,] -0.5 -2.1  0.3 -0.6 -0.2 -1.7   NA
 [6,]  0.6 -0.9 -1.5 -0.3 -0.4 -1.8   NA
 [7,]  0.0 -0.4 -0.5 -0.6 -0.2 -1.7   NA
 [8,]  0.5 -0.4 -0.2  0.3  0.0 -1.3   NA
 [9,]  1.8  0.6  0.2  0.6  0.2 -1.2   NA
[10,]  0.5 -1.0 -0.2  0.2  0.1 -0.9   NA
[11,]  0.9 -0.1 -0.6  0.0  0.4 -1.4   NA
[12,]  0.3 -1.9  3.4  3.1  2.6   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/1zfkz1483628771.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/2nujt1483628771.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/3ctq21483628771.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/4xq2y1483628771.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,] 820.30 819.70 819.4 818.6 817.3 815.60 813.8 812.10 810.80 809.60 808.70
[2,] 820.90 820.70 820.6 818.9 818.2 817.60 817.3 816.70 817.00 817.60 817.50
[3,] 822.75 821.95 820.9 820.6 819.9 819.95 819.0 818.65 818.55 818.75 818.85
[4,] 831.50 831.00 830.0 828.4 828.1 826.70 825.8 825.40 825.00 825.60 824.60
[5,] 832.20 831.90 830.6 829.7 828.8 827.60 828.2 828.20 828.70 830.50 831.00
      [,12]
[1,] 807.30
[2,] 816.90
[3,] 819.05
[4,] 824.50
[5,] 831.90

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

$conf
         [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 815.9127 815.3062 814.8367 814.4722 813.5142 814.0802 813.5172 813.0382
[2,] 829.5873 828.5938 826.9633 826.7278 826.2858 825.8198 824.4828 824.2618
         [,9]    [,10]    [,11]    [,12]
[1,] 813.3897 813.5897 814.2703 814.1478
[2,] 823.7103 823.9103 823.4297 823.9522

$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(820.3, 820.9, 822.75, 831.5, 832.2, 819.7,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/5wob61483628771.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,] -1.00 -1.3 -1.70 -1.60 -2.10 -1.80 -0.60 -1.3  0.2 -1.00 -1.40  -1.9
[2,] -0.60 -1.3 -1.60 -1.00 -1.70 -1.50 -0.60 -0.4  0.2 -0.90 -0.60   0.3
[3,] -0.55 -0.9 -0.85 -0.65 -0.55 -0.65 -0.45 -0.1  0.4 -0.05 -0.05   2.6
[4,] -0.30 -0.3 -0.80 -0.40 -0.20 -0.30 -0.20  0.3  0.6  0.20  0.40   3.1
[5,] -0.20 -0.1  0.20 -0.30  0.30  0.60  0.00  0.5  0.6  0.50  0.90   3.4

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

$conf
           [,1]       [,2]       [,3]       [,4]       [,5]       [,6]
[1,] -0.7435097 -1.5450323 -1.3660258 -1.0370194 -1.5175484 -1.4240388
[2,] -0.3564903 -0.2549677 -0.3339742 -0.2629806  0.4175484  0.1240388
           [,7]       [,8]      [,9]      [,10]      [,11]     [,12]
[1,] -0.7080129 -0.5515226 0.1419871 -0.7595355 -0.6950323 0.6215271
[2,] -0.1919871  0.3515226 0.6580129  0.6595355  0.5950323 4.5784729

$out
[1] -1.7  1.8 -1.2

$group
[1] 7 9 9

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

Warning message:
In bxp(list(stats = c(-1, -0.600000000000023, -0.549999999999955,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6o9g11483628771.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,] 827.60 824.50 816.9 816.70 819.60 807.30   NA
[2,] 828.20 825.20 817.6 817.45 819.80 810.20   NA
[3,] 829.35 826.25 818.8 817.80 820.25 814.70   NA
[4,] 831.00 830.15 820.8 819.00 820.65 819.75   NA
[5,] 831.90 832.20 822.6 820.30 820.90 822.90   NA

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

$conf
         [,1]     [,2]     [,3]    [,4]     [,5]     [,6] [,7]
[1,] 828.0729 823.9923 817.3405 817.093 819.8623 810.3442   NA
[2,] 830.6271 828.5077 820.2595 818.507 820.6377 819.0558   NA

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(827.6, 828.2, 829.35, 831, 831.9, 824.5, 825.2,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/75yay1483628771.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,] 819.7667 818.550 820.2875
[2,] 819.9333 818.800 820.4750
[3,] 820.8750 819.475 821.2562
[4,] 823.2667 820.750 823.5438
[5,] 825.0667 822.750 825.3375

$n
[1] 12 12 12

$conf
         [,1]     [,2]     [,3]
[1,] 819.3546 818.5856 819.8566
[2,] 822.3954 820.3644 822.6559

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(819.766666666667, 819.933333333333, 820.875,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1zfkz1483628771.ps tmp/1zfkz1483628771.png",intern=TRUE))
character(0)
> try(system("convert tmp/2nujt1483628771.ps tmp/2nujt1483628771.png",intern=TRUE))
character(0)
> try(system("convert tmp/3ctq21483628771.ps tmp/3ctq21483628771.png",intern=TRUE))
character(0)
> try(system("convert tmp/4xq2y1483628771.ps tmp/4xq2y1483628771.png",intern=TRUE))
character(0)
> try(system("convert tmp/5wob61483628771.ps tmp/5wob61483628771.png",intern=TRUE))
character(0)
> try(system("convert tmp/6o9g11483628771.ps tmp/6o9g11483628771.png",intern=TRUE))
character(0)
> try(system("convert tmp/75yay1483628771.ps tmp/75yay1483628771.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.568   0.192   2.825