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
'citation()' on how to cite R or R packages in publications.

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> x <- c('Firefox3.0.17'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'Firefox3.0.4'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'Chrome3.0.195.38'
+ ,'Firefox3.0.17'
+ ,'Firefox0'
+ ,'MSIE7'
+ ,'MSIE7'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'Firefox0'
+ ,'Firefox0'
+ ,'MSIE7'
+ ,'Firefox0'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'Firefox0'
+ ,'Firefox0'
+ ,'Safari4.0.4'
+ ,'MSIE8'
+ ,'Firefox3.0.17'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'MSIE7'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'Firefox0'
+ ,'Opera9.8'
+ ,'Firefox3.0.16'
+ ,'MSIE7'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'Firefox0'
+ ,'Firefox0'
+ ,'Safari4.0.4'
+ ,'Firefox0'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'MSIE6'
+ ,'MSIE7'
+ ,'Firefox3.0.16'
+ ,'Safari4.0.3'
+ ,'MSIE7'
+ ,'MSIE7'
+ ,'MSIE6'
+ ,'MSIE7'
+ ,'Firefox3.0.17'
+ ,'MSIE7'
+ ,'Chrome3.0.195.38'
+ ,'MSIE7'
+ ,'Firefox3.0.15'
+ ,'Safari4.0.2'
+ ,'Safari4.0.2'
+ ,'Firefox0'
+ ,'MSIE7'
+ ,'MSIE7'
+ ,'Firefox3.0.17'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'Firefox0'
+ ,'MSIE7'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'Firefox3.0.15'
+ ,'MSIE7'
+ ,'Firefox0'
+ ,'Safari4.0.4'
+ ,'Firefox0'
+ ,'MSIE6'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'Safari0'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'Firefox3.0.16'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'MSIE7'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'Firefox3.0.12'
+ ,'MSIE7'
+ ,'Firefox0'
+ ,'MSIE6'
+ ,'MSIE7'
+ ,'MSIE8'
+ ,'Firefox3.0.16'
+ ,'MSIE7'
+ ,'MSIE7'
+ ,'MSIE8'
+ ,'Safari4.0.3'
+ ,'MSIE7'
+ ,'Firefox3.0.15'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'Safari4.0.3'
+ ,'Safari4.0.2'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'MSIE8'
+ ,'Chrome3.0.195.38'
+ ,'MSIE7'
+ ,'Firefox0'
+ ,'MSIE8'
+ ,'MSIE7'
+ ,'MSIE7'
+ ,'MSIE8'
+ ,'Firefox0'
+ ,'Safari4.0.4'
+ ,'MSIE7'
+ ,'MSIE8'
+ ,'MSIE6'
+ ,'MSIE7')
> par1 = '500'
> #'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)
> if (par1 < 10) par1 = 10
> if (par1 > 5000) par1 = 5000
> library(lattice)
> library(boot)

Attaching package: 'boot'

The following object(s) are masked from 'package:lattice':

    melanoma

> boot.stat <- function(s,i)
+ {
+ s.mean <- mean(s[i])
+ s.median <- median(s[i])
+ s.midrange <- (max(s[i]) + min(s[i])) / 2
+ c(s.mean, s.median, s.midrange)
+ }
> (r <- boot(x,boot.stat, R=par1, stype='i'))
Error in max(s[i]) + min(s[i]) : non-numeric argument to binary operator
Calls: boot -> statistic
In addition: Warning message:
In mean.default(s[i]) : argument is not numeric or logical: returning NA
Execution halted