Hey Jack, Are you trying to model fluorophores? If you want to model a Poisson process you don't need any special packages, just take the negative log of a uniformly distributed random variable from 0-1. Mathematically, this would be saying: y = r*e(-rt), where y is a uniform random variable, then take the integral and then the inverse (how you turn a uniform distribution into any distribution you want).
Chris On Mon, Jul 19, 2010 at 7:18 PM, Jack Uretsky <j...@hep.anl.gov> wrote: > Hi Chris- > In answer to your question, > this is a simulation. The "events" are program generated; I'm trying to > approximate a Poisson process, so the times between event pairs are > exponentially distributed. > Regards, > Jack > > "Trust me. I have a lot of experience at this." > General Custer's unremembered message to his men, > just before leading them into the Little Big Horn Valley > > > > > On Mon, 19 Jul 2010, Christopher Barker wrote: > >> Jack Uretsky wrote: >>> >>> I have a sequence of events ocurring in real time. To each event I >>> display a corresponing .jpg picture. The number of events may be in the >>> hundreds. There are eight pictures. >> >> where are these "events" coming from? >> >> In any case, one route is to have a main wxPython application. In its >> OnInit method, start up another thread that runs the code that listens for >> events. >> >> In that code, when you get an event, call: >> >> wx.CallAfter(some_func_to_update_image) >> >> In some_func_to_update_image() >> >> You, well, update the image in your wxPython code. I think I already >> posted an example of how to do that. >> >> You put the listening code in a separate thread, so it won't block the >> wxPython MainLoop -- if all you are doing is displaying these images, that >> may not be necessary, though you'll have to do something so that the user >> can at least interact enough with the GUI enough to quit it. >> >> wx.CallAfter() is a way to deal with the fact that wxPython is not thread >> safe, so you can't make GUI calls directly from another thread. >> >> HTH, >> >> -Chris >> >> >> >> >> >> >> -- >> Christopher Barker, Ph.D. >> Oceanographer >> >> Emergency Response Division >> NOAA/NOS/OR&R (206) 526-6959 voice >> 7600 Sand Point Way NE (206) 526-6329 fax >> Seattle, WA 98115 (206) 526-6317 main reception >> >> chris.bar...@noaa.gov >> _______________________________________________ >> Image-SIG maillist - image-...@python.org >> http://mail.python.org/mailman/listinfo/image-sig >> > _______________________________________________ > Image-SIG maillist - image-...@python.org > http://mail.python.org/mailman/listinfo/image-sig > _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig
