R version 2.6.2 (2008-02-08)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

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(161.79,161.79,161.85,161.77,161.86,161.89,161.89,161.89,162.18,162.43,162.58,162.57,162.57,162.57,162.44,162.79,163.15,163.23,163.23,163.23,163.38,163.71,163.73,163.73,163.73,163.73,163.93,164.27,164.57,164.73,164.73,164.76,165.75,165.86,165.99,166.13,166.13,166.13,166.15,166.45,166.48,166.51,166.51,166.51,166.58,166.82,167.35,167.5,167.5,167.6,167.72,167.29,166.98,166.98,166.98,166.98,167.63,167.83,167.85,167.87,167.87,167.96,167.7,169.25,168.79,168.77,168.77,169,168.92,169.23,169.28,169.29)
> par1 = '4'
> #'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] 72
> (np <- floor(n / par1))
[1] 18
> 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,] 161.79 161.86 162.18 162.57 163.15 163.38 163.73 164.57 165.75 166.13
[2,] 161.79 161.89 162.43 162.57 163.23 163.71 163.73 164.73 165.86 166.13
[3,] 161.85 161.89 162.58 162.44 163.23 163.73 163.93 164.73 165.99 166.15
[4,] 161.77 161.89 162.57 162.79 163.23 163.73 164.27 164.76 166.13 166.45
      [,11]  [,12]  [,13]  [,14]  [,15]  [,16]  [,17]  [,18]
[1,] 166.48 166.58 167.50 166.98 167.63 167.87 168.79 168.92
[2,] 166.51 166.82 167.60 166.98 167.83 167.96 168.77 169.23
[3,] 166.51 167.35 167.72 166.98 167.85 167.70 168.77 169.28
[4,] 166.51 167.50 167.29 166.98 167.87 169.25 169.00 169.29
> 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] 161.8000 161.8825 162.4400 162.5925 163.2100 163.6375 163.9150 164.6975
 [9] 165.9325 166.2150 166.5025 167.0625 167.5275 166.9800 167.7950 168.1950
[17] 168.8325 169.1800
> arr.sd
 [1] 0.03464102 0.01500000 0.18636881 0.14522970 0.04000000 0.17192537
 [7] 0.25475478 0.08616844 0.16418993 0.15695010 0.01500000 0.43423304
[13] 0.18209430 0.00000000 0.11120552 0.71154761 0.11206397 0.17530925
> arr.range
 [1] 0.08 0.03 0.40 0.35 0.08 0.35 0.54 0.19 0.38 0.32 0.03 0.92 0.43 0.00 0.24
[16] 1.55 0.23 0.37
> (lm1 <- lm(arr.sd~arr.mean))

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

Coefficients:
(Intercept)     arr.mean  
   -3.77350      0.02381  

> (lnlm1 <- lm(log(arr.sd)~log(arr.mean)))
Error in lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : 
  NA/NaN/Inf in foreign function call (arg 4)
Calls: lm -> lm.fit -> .Fortran
Execution halted