R version 3.2.3 (2015-12-10) -- "Wooden Christmas-Tree"
Copyright (C) 2015 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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> x <- c(90.4,89.5,88.9,88.4,87.6,87.1,86.5,85.7,85.3,84.9,84.5,84.4,84.3,84.2,84.1,83.8,83.5,83.2,82.8,82.2,81.5,80.8,80.3,79.8,79.2,78.8,78.1,77.8,77.3,76.7,76.2,76.1,76.3,76.2,76.2,76.6,75.5,75.4,75.5,75.5,75.2,74.9,74.6,74.4,74,73.3,72.7,72,71.2,70.9,70.4,70,69.7,69.2,68.7,68.6,68.4,67.9,67.4,66.5,65.6,64.6,63.8,63,62.1,61.7,61.4,61.1,61.1,61,60.5,60.2,59.9,59.4,59.6,59.5,59.3,59.3,59.1,58.8)
> 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] 80
> (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] 7 7 7 7 7 7 7 7 6 6 6 6
> arr
      [,1] [,2] [,3] [,4] [,5] [,6] [,7]
 [1,] 90.4 84.3 79.2 75.5 71.2 65.6 59.9
 [2,] 89.5 84.2 78.8 75.4 70.9 64.6 59.4
 [3,] 88.9 84.1 78.1 75.5 70.4 63.8 59.6
 [4,] 88.4 83.8 77.8 75.5 70.0 63.0 59.5
 [5,] 87.6 83.5 77.3 75.2 69.7 62.1 59.3
 [6,] 87.1 83.2 76.7 74.9 69.2 61.7 59.3
 [7,] 86.5 82.8 76.2 74.6 68.7 61.4 59.1
 [8,] 85.7 82.2 76.1 74.4 68.6 61.1 58.8
 [9,] 85.3 81.5 76.3 74.0 68.4 61.1   NA
[10,] 84.9 80.8 76.2 73.3 67.9 61.0   NA
[11,] 84.5 80.3 76.2 72.7 67.4 60.5   NA
[12,] 84.4 79.8 76.6 72.0 66.5 60.2   NA
> darr
      [,1] [,2] [,3] [,4] [,5] [,6] [,7]
 [1,] -0.9 -0.1 -0.4 -0.1 -0.3 -1.0 -0.5
 [2,] -0.6 -0.1 -0.7  0.1 -0.5 -0.8  0.2
 [3,] -0.5 -0.3 -0.3  0.0 -0.4 -0.8 -0.1
 [4,] -0.8 -0.3 -0.5 -0.3 -0.3 -0.9 -0.2
 [5,] -0.5 -0.3 -0.6 -0.3 -0.5 -0.4  0.0
 [6,] -0.6 -0.4 -0.5 -0.3 -0.5 -0.3 -0.2
 [7,] -0.8 -0.6 -0.1 -0.2 -0.1 -0.3 -0.3
 [8,] -0.4 -0.7  0.2 -0.4 -0.2  0.0   NA
 [9,] -0.4 -0.7 -0.1 -0.7 -0.5 -0.1   NA
[10,] -0.4 -0.5  0.0 -0.6 -0.5 -0.5   NA
[11,] -0.1 -0.5  0.4 -0.7 -0.9 -0.3   NA
[12,] -0.1 -0.6 -1.1 -0.8 -0.9 -0.3   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/1502k1457463469.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/2s0wg1457463469.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/3mxr91457463469.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/48uqz1457463469.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,] 59.90 59.40 59.6 59.5 59.3 59.30 59.10 58.80 61.10 61.00 60.50  60.2
[2,] 68.40 67.75 67.1 66.5 65.9 65.45 65.05 64.85 68.40 67.90 67.40  66.5
[3,] 75.50 75.40 75.5 75.5 75.2 74.90 74.60 74.40 75.15 74.75 74.45  74.3
[4,] 81.75 81.50 81.1 80.8 80.4 79.95 79.50 79.15 81.50 80.80 80.30  79.8
[5,] 90.40 89.50 88.9 88.4 87.6 87.10 86.50 85.70 85.30 84.90 84.50  84.4

$n
 [1] 7 7 7 7 7 7 7 7 6 6 6 6

$conf
        [,1]     [,2]     [,3]     [,4]     [,5]     [,6]     [,7]     [,8]
[1,] 67.5276 67.18872 67.13943 66.96027 66.54083 66.24083 65.97069 65.86027
[2,] 83.4724 83.61128 83.86057 84.03973 83.85917 83.55917 83.22931 82.93973
         [,9]    [,10]    [,11]    [,12]
[1,] 66.70008 66.42908 66.12908 65.72107
[2,] 83.59992 83.07092 82.77092 82.87893

$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(59.9, 68.4, 75.5, 81.75, 90.4, 59.4, 67.75,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/51wgj1457463469.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]
[1,] -1.0 -8.000000e-01 -0.80 -0.90 -0.6 -0.6 -0.80 -0.7 -0.70  -0.6  -0.9
[2,] -0.7 -6.500000e-01 -0.45 -0.65 -0.5 -0.5 -0.45 -0.4 -0.70  -0.5  -0.7
[3,] -0.4 -5.000000e-01 -0.30 -0.30 -0.4 -0.4 -0.30 -0.3 -0.45  -0.5  -0.4
[4,] -0.2 -7.105427e-15 -0.20 -0.30 -0.3 -0.3 -0.15  0.0 -0.10  -0.4  -0.1
[5,] -0.1  2.000000e-01  0.00 -0.20  0.0 -0.2 -0.10  0.2 -0.10  -0.4   0.4
     [,12]
[1,]  -1.1
[2,]  -0.9
[3,]  -0.7
[4,]  -0.3
[5,]  -0.1

$n
 [1] 7 7 7 7 7 7 7 6 6 6 6 6

$conf
           [,1]       [,2]      [,3]        [,4]       [,5]       [,6]
[1,] -0.6985919 -0.8881695 -0.449296 -0.50901435 -0.5194368 -0.5194368
[2,] -0.1014081 -0.1118305 -0.150704 -0.09098565 -0.2805632 -0.2805632
           [,7]        [,8]        [,9]      [,10]       [,11]      [,12]
[1,] -0.4791552 -0.55801292 -0.83701938 -0.5645032 -0.78701938 -1.0870194
[2,] -0.1208448 -0.04198708 -0.06298062 -0.4354968 -0.01298062 -0.3129806

$out
[1] 0

$group
[1] 10

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

Warning message:
In bxp(list(stats = c(-1, -0.700000000000003, -0.400000000000006,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/6w3331457463469.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,] 84.40 79.80 76.10 72.00 66.50 60.20 58.80
[2,] 85.10 81.15 76.20 73.65 68.15 61.05 59.20
[3,] 86.80 83.00 76.65 74.75 68.95 61.55 59.35
[4,] 88.65 83.95 77.95 75.45 70.20 63.40 59.55
[5,] 90.40 84.30 79.20 75.50 71.20 65.60 59.90

$n
[1] 12 12 12 12 12 12  8

$conf
         [,1]    [,2]     [,3]     [,4]     [,5]     [,6]     [,7]
[1,] 85.18082 81.7229 75.85181 73.92901 68.01498 60.47815 59.15448
[2,] 88.41918 84.2771 77.44819 75.57099 69.88502 62.62185 59.54552

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(84.4, 85.1, 86.8, 88.65, 90.4, 79.8, 81.15,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/7m8io1457463469.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,] 72.41429 74.300 72.0000
[2,] 73.20357 74.525 72.9250
[3,] 73.80000 75.025 73.8250
[4,] 74.38810 75.450 74.5375
[5,] 75.15714 75.500 75.0750

$n
[1] 12 12 12

$conf
         [,1]    [,2]     [,3]
[1,] 73.25973 74.6031 73.08953
[2,] 74.34027 75.4469 74.56047

$out
numeric(0)

$group
numeric(0)

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

Warning message:
In bxp(list(stats = c(72.4142857142857, 73.2035714285714, 73.8,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> dev.off()
null device 
          1 
> 
> try(system("convert tmp/1502k1457463469.ps tmp/1502k1457463469.png",intern=TRUE))
character(0)
> try(system("convert tmp/2s0wg1457463469.ps tmp/2s0wg1457463469.png",intern=TRUE))
character(0)
> try(system("convert tmp/3mxr91457463469.ps tmp/3mxr91457463469.png",intern=TRUE))
character(0)
> try(system("convert tmp/48uqz1457463469.ps tmp/48uqz1457463469.png",intern=TRUE))
character(0)
> try(system("convert tmp/51wgj1457463469.ps tmp/51wgj1457463469.png",intern=TRUE))
character(0)
> try(system("convert tmp/6w3331457463469.ps tmp/6w3331457463469.png",intern=TRUE))
character(0)
> try(system("convert tmp/7m8io1457463469.ps tmp/7m8io1457463469.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.745   0.462   3.235