On Mon, 2010-03-22 at 02:49 -0600, Carlos Ernesto Lopez Nataren wrote: > Hello everybody :) I am trying to simulate a queue with times of arrival to > the queue and time taken to dispatch every member of the queue coming from > two exponential distributions, I am interested in knowing the number of > people at any time and the time that takes every member of this queue to be > dispatched. > > I thought this was gonna be an easy task but I've failed to try to simulate > this, is there any package that does this already? > > Any help will be greatly appreciated. > > Thank you very much > Carlos
Carlos, if I understand your problem do you need know the time for each person in a queue dispatched. You say this time fit a exponential distribution, so do you have a rate of dispatch (x dispatch per time) If I want generate 10 times of dispatch rate 0.4, use the command times <- rexp(10,0.4) If I need the total delay for each person, use the command cumsum(times) If I need the average time in the queue, use the command means(cumsum(times)) -- Bernardo Rangel Tura, M.D,MPH,Ph.D National Institute of Cardiology Brazil ______________________________________________ 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.
