Inline. On Thursday, May 26, 2016, Jessica Wang <25695...@qq.com> wrote:
> Hello, I just start using R. I want to use “fitdistr” to fit distribution > of the data. Then how can I verify if the data really fit the distribution? > Thanks [data is attached] > > You can't. There are many ways to judge/quantify the **quality** of the fit, but your question indicates a complete misunderstanding of basic statistical concepts (imo of course) . I suggest you spend time with a local statistical resource, take some courses, do some reading, etc. Cheers, Bert > res<-fitdistr(data$Report.delay, "Poisson") > > h<-hist(data$Report.delay) > > xfit<-floor(seq(0, 250, 50)) > > yfit<-dpois(xfit,res[[1]][1]) > > yfit<-yfit*diff(h$mids[1:2])*length(xfit) > > lines(xfit, yfit, col="blue", lwd=2) > ______________________________________________ > R-help@r-project.org <javascript:;> mailing list -- To UNSUBSCRIBE and > more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip ) [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.