Thank you two of you very much for your help, I found the way to solve my problem.
Best wishes, Tuan. On Thu, Nov 6, 2008 at 4:14 PM, Rolf Turner <[EMAIL PROTECTED]> wrote: > > On 7/11/2008, at 9:26 AM, Hoang Trong Minh Tuan wrote: > > Hi all, >> So far I only know one way to get the confidence limit for the Poisson >> distribution is to use the look-up table given by the 2 parameter (the >> number of observation x and the confidence level, e.g. 95%) and the table >> is >> limit by the maximum number of observations (x <= 50). >> I know the formula to compute the CI, however, mathematically it is not >> easy to do it. So, anyone know an R function to do this. Thanks >> >> Tuan. >> > > You may find the URL > > http://www.math.mcmaster.ca/peter/s743/poissonalpha.html > > useful. > > cheers, > > Rolf Turner > > P.S. The foregoing URL discusses the issues in terms of a *single* > observation. Note that if X_1, ..., X_n are i.i.d. Poisson(lambda) > then Y = X_1 + ... + X_n is Poisson(n*lambda). > > Note that the ``exact'' confidence limits are very conservative. > > R. T. > > ###################################################################### > Attention:This e-mail message is privileged and confidential. If you are > not theintended recipient please delete the message and notify the > sender.Any views or opinions presented are solely those of the author. > > This e-mail has been scanned and cleared by MailMarshal > www.marshalsoftware.com > ###################################################################### > -- Hoang Trong Minh Tuan PhD Student - Bioinformatics&Computational Biology George Mason University,Fairfax, VA, US HP: 703-473-1395 [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list 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.
