R version 2.9.0 (2009-04-17)
Copyright (C) 2009 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

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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
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> x <- c(1954,2302,3054,2414,2226,2725,2589,3470,2400,3180,4009,3924,2072,2434,2956,2828,2687,2629,3150,4119,3030,3055,3821,4001,2529,2472,3134,2789,2758,2993,3282,3437,2804,3076,3782,3889,2271,2452,3084,2522,2769,3438,2839,3746,2632,2851,3871,3618,2389,2344,2678,2492,2858,2246,2800,3869,3007,3023,3907,4209,2353,2570,2903,2910,3782,2759,2931,3641,2794,3070,3576,4106,2452,2206,2488,2416,2534,2521,3093,3903,2907,3025,3812,4209,2138,2419,2622,2912,2708,2798,3254,2895,3263,3736,4077,4097,2175,3138,2823,2498,2822,2738,4137,3515,3785,3632,4504,4451,2550,2867,3458,2961,3163,2880,3331,3062,3534,3622,4464,5411,2564,2820,3508,3088,3299,2939,3320,3418,3604,3495,4163,4882,2211,3260,2992,2425,2707,3244,3965,3315,3333,3583,4021,4904,2252,2952,3573,3048,3059,2731,3563,3092,3478,3478,4308,5029,2075,3264,3308,3688,3136,2824,3644,4694,2914,3686,4358,5587,2265,3685,3754,3708,3210,3517,3905,3670,4221,4404,5086,5725,2367,3819,4067,4022,3937,4365,4290)
> par1 = '750'
> #'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* 3262.610  -5.260749    53.04819
t2* 3134.000  -4.330667    75.97632
t3* 3839.500 -24.944000    85.18924
> postscript(file="/var/www/html/rcomp/tmp/1hity1275804998.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(r$t[,1],type='p',ylab='simulated values',main='Simulation of Mean')
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/2hity1275804998.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(r$t[,2],type='p',ylab='simulated values',main='Simulation of Median')
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/3saak1275804998.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> plot(r$t[,3],type='p',ylab='simulated values',main='Simulation of Midrange')
> grid()
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/4saak1275804998.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> densityplot(~r$t[,1],col='black',main='Density Plot',xlab='mean')
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/5saak1275804998.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> densityplot(~r$t[,2],col='black',main='Density Plot',xlab='median')
> dev.off()
null device 
          1 
> postscript(file="/var/www/html/rcomp/tmp/6kjr41275804998.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> densityplot(~r$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$t[,3]))
> colnames(z) <- list('mean','median','midrange')
> postscript(file="/var/www/html/rcomp/tmp/7kjr41275804998.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) 
> boxplot(z,notch=TRUE,ylab='simulated values',main='Bootstrap Simulation - Central Tendency')
Warning message:
In bxp(list(stats = c(3118.29946524064, 3222.10160427807, 3257.61764705882,  :
  some notches went outside hinges ('box'): maybe set notch=FALSE
> grid()
> dev.off()
null device 
          1 
> 
> #Note: the /var/www/html/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab
> load(file="/var/www/html/rcomp/createtable")
> 
> a<-table.start()
> a<-table.row.start(a)
> a<-table.element(a,'Estimation Results of Bootstrap',6,TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'statistic',header=TRUE)
> a<-table.element(a,'Q1',header=TRUE)
> a<-table.element(a,'Estimate',header=TRUE)
> a<-table.element(a,'Q3',header=TRUE)
> a<-table.element(a,'S.D.',header=TRUE)
> a<-table.element(a,'IQR',header=TRUE)
> a<-table.row.end(a)
> a<-table.row.start(a)
> a<-table.element(a,'mean',header=TRUE)
> q1 <- quantile(r$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/html/rcomp/tmp/82b5j1275804998.tab") 
> 
> try(system("convert tmp/1hity1275804998.ps tmp/1hity1275804998.png",intern=TRUE))
character(0)
> try(system("convert tmp/2hity1275804998.ps tmp/2hity1275804998.png",intern=TRUE))
character(0)
> try(system("convert tmp/3saak1275804998.ps tmp/3saak1275804998.png",intern=TRUE))
character(0)
> try(system("convert tmp/4saak1275804998.ps tmp/4saak1275804998.png",intern=TRUE))
character(0)
> try(system("convert tmp/5saak1275804998.ps tmp/5saak1275804998.png",intern=TRUE))
character(0)
> try(system("convert tmp/6kjr41275804998.ps tmp/6kjr41275804998.png",intern=TRUE))
character(0)
> try(system("convert tmp/7kjr41275804998.ps tmp/7kjr41275804998.png",intern=TRUE))
character(0)
> 
> 
> proc.time()
   user  system elapsed 
  2.196   1.386   6.088