R version 2.13.0 (2011-04-13)
Copyright (C) 2011 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

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Type 'contributors()' for more information and
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Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> x <- c(26.663
+ ,23.598
+ ,26.931
+ ,24.740
+ ,25.806
+ ,24.364
+ ,24.477
+ ,23.901
+ ,23.175
+ ,23.227
+ ,21.672
+ ,21.870
+ ,21.439
+ ,21.089
+ ,23.709
+ ,21.669
+ ,21.752
+ ,20.761
+ ,23.479
+ ,23.824
+ ,23.105
+ ,23.110
+ ,21.759
+ ,22.073
+ ,21.937
+ ,20.035
+ ,23.590
+ ,21.672
+ ,22.222
+ ,22.123
+ ,23.950
+ ,23.504
+ ,22.238
+ ,23.142
+ ,21.059
+ ,21.573
+ ,21.548
+ ,20.000
+ ,22.424
+ ,20.615
+ ,21.761
+ ,22.874
+ ,24.104
+ ,23.748
+ ,23.262
+ ,22.907
+ ,21.519
+ ,22.025
+ ,22.604
+ ,20.894
+ ,24.677
+ ,23.673
+ ,25.320
+ ,23.583
+ ,24.671
+ ,24.454
+ ,24.122
+ ,24.252
+ ,22.084
+ ,22.991
+ ,23.287
+ ,23.049
+ ,25.076
+ ,24.037
+ ,24.430
+ ,24.667
+ ,26.451
+ ,25.618
+ ,25.014
+ ,25.110
+ ,22.964
+ ,23.981
+ ,23.798
+ ,22.270
+ ,24.775
+ ,22.646
+ ,23.988
+ ,24.737
+ ,26.276
+ ,25.816
+ ,25.210
+ ,25.199
+ ,23.162
+ ,24.707
+ ,24.364
+ ,22.644
+ ,25.565
+ ,24.062
+ ,25.431
+ ,24.635
+ ,27.009
+ ,26.606
+ ,26.268
+ ,26.462
+ ,25.246
+ ,25.180
+ ,24.657
+ ,23.304
+ ,26.982
+ ,26.199
+ ,27.210
+ ,26.122
+ ,26.706
+ ,26.878
+ ,26.152
+ ,26.379
+ ,24.712
+ ,25.688
+ ,24.990
+ ,24.239
+ ,26.721
+ ,23.475
+ ,24.767
+ ,26.219
+ ,28.361
+ ,28.599
+ ,27.914
+ ,27.784
+ ,25.693
+ ,26.881
+ ,26.217
+ ,24.218
+ ,27.914
+ ,26.975
+ ,28.527
+ ,27.139
+ ,28.982
+ ,28.169
+ ,28.056
+ ,29.136
+ ,26.291
+ ,26.987
+ ,26.589
+ ,24.848
+ ,27.543
+ ,26.896
+ ,28.878
+ ,27.390
+ ,28.065
+ ,28.141
+ ,29.048
+ ,28.484
+ ,26.634
+ ,27.735
+ ,27.132
+ ,24.924
+ ,28.963
+ ,26.589
+ ,27.931
+ ,28.009
+ ,29.229
+ ,28.759
+ ,28.405
+ ,27.945
+ ,25.912
+ ,26.619
+ ,26.076
+ ,25.286
+ ,27.660
+ ,25.951
+ ,26.398
+ ,25.565
+ ,28.865
+ ,30.000
+ ,29.261
+ ,29.012
+ ,26.992
+ ,27.897)
> par1 = '12'
> #'GNU S' R Code compiled by R2WASP v. 1.0.44 ()
> #Author: Prof. Dr. P. Wessa
> #To cite this work: AUTHOR(S), (YEAR), YOUR SOFTWARE TITLE (vNUMBER) in Free Statistics Software (v$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/
> #Source of accompanying publication: Office for Research, Development, and Education
> #Technical description: Write here your technical program description (don't use hard returns!)
> par1 <- as.numeric(par1)
> (n <- length(x))
[1] 168
> (np <- floor(n / par1))
[1] 14
> arr <- array(NA,dim=c(par1,np))
> j <- 0
> k <- 1
> for (i in 1:(np*par1))
+ {
+ j = j + 1
+ arr[j,k] <- x[i]
+ if (j == par1) {
+ j = 0
+ k=k+1
+ }
+ }
> arr
        [,1]   [,2]   [,3]   [,4]   [,5]   [,6]   [,7]   [,8]   [,9]  [,10]
 [1,] 26.663 21.439 21.937 21.548 22.604 23.287 23.798 24.364 24.657 24.990
 [2,] 23.598 21.089 20.035 20.000 20.894 23.049 22.270 22.644 23.304 24.239
 [3,] 26.931 23.709 23.590 22.424 24.677 25.076 24.775 25.565 26.982 26.721
 [4,] 24.740 21.669 21.672 20.615 23.673 24.037 22.646 24.062 26.199 23.475
 [5,] 25.806 21.752 22.222 21.761 25.320 24.430 23.988 25.431 27.210 24.767
 [6,] 24.364 20.761 22.123 22.874 23.583 24.667 24.737 24.635 26.122 26.219
 [7,] 24.477 23.479 23.950 24.104 24.671 26.451 26.276 27.009 26.706 28.361
 [8,] 23.901 23.824 23.504 23.748 24.454 25.618 25.816 26.606 26.878 28.599
 [9,] 23.175 23.105 22.238 23.262 24.122 25.014 25.210 26.268 26.152 27.914
[10,] 23.227 23.110 23.142 22.907 24.252 25.110 25.199 26.462 26.379 27.784
[11,] 21.672 21.759 21.059 21.519 22.084 22.964 23.162 25.246 24.712 25.693
[12,] 21.870 22.073 21.573 22.025 22.991 23.981 24.707 25.180 25.688 26.881
       [,11]  [,12]  [,13]  [,14]
 [1,] 26.217 26.589 27.132 26.076
 [2,] 24.218 24.848 24.924 25.286
 [3,] 27.914 27.543 28.963 27.660
 [4,] 26.975 26.896 26.589 25.951
 [5,] 28.527 28.878 27.931 26.398
 [6,] 27.139 27.390 28.009 25.565
 [7,] 28.982 28.065 29.229 28.865
 [8,] 28.169 28.141 28.759 30.000
 [9,] 28.056 29.048 28.405 29.261
[10,] 29.136 28.484 27.945 29.012
[11,] 26.291 26.634 25.912 26.992
[12,] 26.987 27.735 26.619 27.897
> arr.mean <- array(NA,dim=np)
> arr.sd <- array(NA,dim=np)
> arr.range <- array(NA,dim=np)
> for (j in 1:np)
+ {
+ arr.mean[j] <- mean(arr[,j],na.rm=TRUE)
+ arr.sd[j] <- sd(arr[,j],na.rm=TRUE)
+ arr.range[j] <- max(arr[,j],na.rm=TRUE) - min(arr[,j],na.rm=TRUE)
+ }
> arr.mean
 [1] 24.20200 22.31408 22.25375 22.23225 23.61042 24.47367 24.38200 25.28933
 [9] 25.91575 26.30358 27.38425 27.52092 27.53475 27.41358
> arr.sd
 [1] 1.672450 1.071052 1.139607 1.228659 1.267789 1.064666 1.237361 1.240316
 [9] 1.154523 1.692888 1.389679 1.169121 1.316377 1.599425
> arr.range
 [1] 5.259 3.063 3.915 4.104 4.426 3.487 4.006 4.365 3.906 5.124 4.918 4.200
[13] 4.305 4.714
> (lm1 <- lm(arr.sd~arr.mean))

Call:
lm(formula = arr.sd ~ arr.mean)

Coefficients:
(Intercept)     arr.mean  
    0.26740      0.04133  

> (lnlm1 <- lm(log(arr.sd)~log(arr.mean)))

Call:
lm(formula = log(arr.sd) ~ log(arr.mean))

Coefficients:
  (Intercept)  log(arr.mean)  
      -2.3005         0.7936  

> (lm2 <- lm(arr.range~arr.mean))

Call:
lm(formula = arr.range ~ arr.mean)

Coefficients:
(Intercept)     arr.mean  
     0.6526       0.1444  

> postscript(file="/var/wessaorg/rcomp/tmp/14ys41322834891.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.mean,arr.sd,main='Standard Deviation-Mean Plot',xlab='mean',ylab='standard deviation')
> dev.off()
null device 
          1 
> postscript(file="/var/wessaorg/rcomp/tmp/2ltbd1322834891.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(arr.mean,arr.range,main='Range-Mean Plot',xlab='mean',ylab='range')
> dev.off()
null device 
          1 
> 
> #Note: the /var/wessaorg/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/wessaorg/rcomp/createtable")
> 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Standard Deviation-Mean Plot',4,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Section',header=TRUE)
> a<-table.element(a,'Mean',header=TRUE)
> a<-table.element(a,'Standard Deviation',header=TRUE)
> a<-table.element(a,'Range',header=TRUE)
> a<-table.row.end(a)
> for (j in 1:np) {
+ a<-table.row.start(a)
+ a<-table.element(a,j,header=TRUE)
+ a<-table.element(a,arr.mean[j])
+ a<-table.element(a,arr.sd[j] )
+ a<-table.element(a,arr.range[j] )
+ a<-table.row.end(a)
+ }
> a<-table.end(a)
> table.save(a,file="/var/wessaorg/rcomp/tmp/3dkxd1322834891.tab") 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Regression: S.E.(k) = alpha + beta * Mean(k)',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'alpha',header=TRUE)
> a<-table.element(a,lm1$coefficients[[1]])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'beta',header=TRUE)
> a<-table.element(a,lm1$coefficients[[2]])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'S.D.',header=TRUE)
> a<-table.element(a,summary(lm1)$coefficients[2,2])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'T-STAT',header=TRUE)
> a<-table.element(a,summary(lm1)$coefficients[2,3])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'p-value',header=TRUE)
> a<-table.element(a,summary(lm1)$coefficients[2,4])
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/wessaorg/rcomp/tmp/47d0o1322834891.tab") 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Regression: ln S.E.(k) = alpha + beta * ln Mean(k)',2,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'alpha',header=TRUE)
> a<-table.element(a,lnlm1$coefficients[[1]])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'beta',header=TRUE)
> a<-table.element(a,lnlm1$coefficients[[2]])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'S.D.',header=TRUE)
> a<-table.element(a,summary(lnlm1)$coefficients[2,2])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'T-STAT',header=TRUE)
> a<-table.element(a,summary(lnlm1)$coefficients[2,3])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'p-value',header=TRUE)
> a<-table.element(a,summary(lnlm1)$coefficients[2,4])
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'Lambda',header=TRUE)
> a<-table.element(a,1-lnlm1$coefficients[[2]])
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/wessaorg/rcomp/tmp/5blar1322834891.tab") 
> 
> try(system("convert tmp/14ys41322834891.ps tmp/14ys41322834891.png",intern=TRUE))
character(0)
> try(system("convert tmp/2ltbd1322834891.ps tmp/2ltbd1322834891.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  0.626   0.147   0.854