R version 2.12.1 (2010-12-16)
Copyright (C) 2010 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
Platform: i486-pc-linux-gnu (32-bit)

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> x <- c(98.6,98.8,99.9,100.3,100.2,100.2,100.6,100.4,100.7,100.9,99.7,99.7,96.8,99.2,99.9,99.3,98.9,98.9,98.7,98.4,98.6,98.5,98.1,98.3,98.1,97.9,99.1,98.5,98.2,97.8,98,98,97.6,97.6,97.6,97.5,96.1,96.1,96.3,96.3,96.3,96,96,95.2,96,96.1,95.3,95.1,94.8,94.5,94.7,94.8,94.5,94.5,92.8,92.8,94.5,94.4,94.2,94.1,92.9,93.3,93.6,93.6,94,94,94.2,93.3,93,93,94.7,95.6,95.8,96,95.4,95.3,94.4,94.4,94.3,93.9,94.5,93.6,93.9,93.9,93.7,94.6,94.4,94,91.1,91.1,90.7,90.8,89.8,90.7,90.3,89.7,89,88.4,89.3,89.3,89.3,89.3,88.4,89.4,91.3,90.9,91,89.3,88.1,89,90.1,90.6,90.6,90.2,89.5,90.5,90.4,89.7,90,90.2,89.3,89.6,89.8,89.4,89.3,89.4,89.5,89.2,90,88,88.3,89.1)
> par1 = '50'
> #'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'))

ORDINARY NONPARAMETRIC BOOTSTRAP


Call:
boot(data = x, statistic = boot.stat, R = par1, stype = "i")


Bootstrap Statistics :
    original      bias    std. error
t1*  94.1447 -0.00669697  0.30448331
t2*  94.4000 -0.06400000  0.22247220
t3*  94.4500 -0.02900000  0.08212112
> postscript(file="/var/www/rcomp/tmp/1rjab1323189856.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(r$t[,1],type='p',ylab='simulated values',main='Simulation of Mean')
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/rcomp/tmp/2zuuv1323189856.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(r$t[,2],type='p',ylab='simulated values',main='Simulation of Median')
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/rcomp/tmp/3ut0o1323189856.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(r$t[,3],type='p',ylab='simulated values',main='Simulation of Midrange')
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/rcomp/tmp/4mdxm1323189856.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> densityplot(~r$t[,1],col='black',main='Density Plot',xlab='mean')
> dev.off()
null device 
          1 
> postscript(file="/var/www/rcomp/tmp/512qb1323189856.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> densityplot(~r$t[,2],col='black',main='Density Plot',xlab='median')
> dev.off()
null device 
          1 
> postscript(file="/var/www/rcomp/tmp/6vbos1323189856.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> densityplot(~r$t[,3],col='black',main='Density Plot',xlab='midrange')
> dev.off()
null device 
          1 
> z <- data.frame(cbind(r$t[,1],r$t[,2],r$t[,3]))
> colnames(z) <- list('mean','median','midrange')
> postscript(file="/var/www/rcomp/tmp/7rujm1323189856.ps",horizontal=F,onefile=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> boxplot(z,notch=TRUE,ylab='simulated values',main='Bootstrap Simulation - Central Tendency')
Warning message:
In bxp(list(stats = c(93.4636363636364, 93.939393939394, 94.1382575757576,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> grid()
> dev.off()
null device 
          1 
> 
> #Note: the /var/www/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/www/rcomp/createtable")
> 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Estimation Results of Bootstrap',6,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'statistic',header=TRUE)
> a<-table.element(a,'Q1',header=TRUE)
> a<-table.element(a,'Estimate',header=TRUE)
> a<-table.element(a,'Q3',header=TRUE)
> a<-table.element(a,'S.D.',header=TRUE)
> a<-table.element(a,'IQR',header=TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'mean',header=TRUE)
> q1 <- quantile(r$t[,1],0.25)[[1]]
> q3 <- quantile(r$t[,1],0.75)[[1]]
> a<-table.element(a,q1)
> a<-table.element(a,r$t0[1])
> a<-table.element(a,q3)
> a<-table.element(a,sqrt(var(r$t[,1])))
> a<-table.element(a,q3-q1)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'median',header=TRUE)
> q1 <- quantile(r$t[,2],0.25)[[1]]
> q3 <- quantile(r$t[,2],0.75)[[1]]
> a<-table.element(a,q1)
> a<-table.element(a,r$t0[2])
> a<-table.element(a,q3)
> a<-table.element(a,sqrt(var(r$t[,2])))
> a<-table.element(a,q3-q1)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'midrange',header=TRUE)
> q1 <- quantile(r$t[,3],0.25)[[1]]
> q3 <- quantile(r$t[,3],0.75)[[1]]
> a<-table.element(a,q1)
> a<-table.element(a,r$t0[3])
> a<-table.element(a,q3)
> a<-table.element(a,sqrt(var(r$t[,3])))
> a<-table.element(a,q3-q1)
> a<-table.row.end(a)
> a<-table.end(a)
> table.save(a,file="/var/www/rcomp/tmp/8qzuh1323189856.tab") 
> 
> try(system("convert tmp/1rjab1323189856.ps tmp/1rjab1323189856.png",intern=TRUE))
character(0)
> try(system("convert tmp/2zuuv1323189856.ps tmp/2zuuv1323189856.png",intern=TRUE))
character(0)
> try(system("convert tmp/3ut0o1323189856.ps tmp/3ut0o1323189856.png",intern=TRUE))
character(0)
> try(system("convert tmp/4mdxm1323189856.ps tmp/4mdxm1323189856.png",intern=TRUE))
character(0)
> try(system("convert tmp/512qb1323189856.ps tmp/512qb1323189856.png",intern=TRUE))
character(0)
> try(system("convert tmp/6vbos1323189856.ps tmp/6vbos1323189856.png",intern=TRUE))
character(0)
> try(system("convert tmp/7rujm1323189856.ps tmp/7rujm1323189856.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.884   0.552   4.280