R version 2.7.2 (2008-08-25) 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(110.4,96.4,101.9,106.2,81,94.7,101,109.4,102.3,90.7,96.2,96.1,106,103.1,102,104.7,86,92.1,106.9,112.6,101.7,92,97.4,97,105.4,102.7,98.1,104.5,87.4,89.9,109.8,111.7,98.6,96.9,95.1,97,112.7,102.9,97.4,111.4,87.4,96.8,114.1,110.3,103.9,101.6,94.6,95.9,104.7,102.8,98.1,113.9,80.9,95.7,113.2,105.9,108.8,102.3,99,100.7,115.5) > #'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$_version), Office for Research Development and Education, URL http://www.wessa.net/rwasp_YOURPAGE.wasp/ > #Source of accompanying publication: Office for Research, Development, and Education > #Technical description: Write here your technical program description (don't use hard returns!) > library(MASS) > (f<-fitdistr(x, 'poisson')) lambda 100.908197 ( 1.286170) There were 50 or more warnings (use warnings() to see the first 50) > xlab <- paste('Poisson(lambda=',round(f$estimate[[1]],2)) > xlab <- paste(xlab,')') > postscript(file="/var/www/html/rcomp/tmp/1vr5n1225146338.ps",horizontal=F,pagecentre=F,paper="special",width=8.3333333333333,height=5.5555555555556) > qqplot(qpois(ppoints(x), lambda=f$estimate[[1]]), x, main='QQ plot (Poisson)', xlab=xlab ) > grid() > dev.off() null device 1 > > #Note: the /var/www/html/rcomp/createtable file can be downloaded at http://www.wessa.net/cretab > load(file="/var/www/html/rcomp/createtable") > > a<-table.start() > a<-table.row.start(a) > a<-table.element(a,'Parameter',1,TRUE) > a<-table.element(a,'Estimated Value',1,TRUE) > a<-table.element(a,'Standard Deviation',1,TRUE) > a<-table.row.end(a) > a<-table.row.start(a) > a<-table.element(a,'lambda',header=TRUE) > a<-table.element(a,f$estimate[1]) > a<-table.element(a,f$sd[1]) > a<-table.row.end(a) > a<-table.end(a) > table.save(a,file="/var/www/html/rcomp/tmp/23iwx1225146338.tab") > > system("convert tmp/1vr5n1225146338.ps tmp/1vr5n1225146338.png") > > > proc.time() user system elapsed 0.700 0.188 0.878