Hi all, I found this paper online (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4226152), which discusses a method to model the sum of continuous random variables over a number of events where the number of events is also a random variable. I was wondering if anyone knew of specific examples using this approach to model reproductive events in animal populations? Or if a robust modeling framework in R has been constructed? ?What is best in mathematics deserves not merely to be learnt as a task, but to be assimilated as a part of daily thought, and brought again and again before the mind with ever-renewed encouragement.? Bertrand Russell Graduate Assistant (PhD) Archie Carr Center for Sea Turtle Research Department of Biology University of Florida Tel: (+1) 352-282-5616 Website: http://accstr.ufl.edu/ Skype: geoglen12 Email: george.glen at ufl.edu<mailto:george.glen at ufl.edu>
Randomly Stopped Sum Model
2 messages · Glen,George, Mollie Brooks
Hi George, I?m not familiar with the method in that paper, but I know that "a Tweedie distribution is equivalent to the distribution obtained by summing a Poisson number of gamma random variables" (Foster & Bravington 2013) and there are a few methods available in R for estimating the Tweedie distribution (i.e. compound Poisson?gamma distribution). ?but is the measurement for each reproductive event really continuous, e.g something like total clutch weight or volume? cheers, Mollie
On 11Oct 2018, at 15:49, Glen,George <george.glen at ufl.edu> wrote: Hi all, I found this paper online (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4226152), which discusses a method to model the sum of continuous random variables over a number of events where the number of events is also a random variable. I was wondering if anyone knew of specific examples using this approach to model reproductive events in animal populations? Or if a robust modeling framework in R has been constructed? ?What is best in mathematics deserves not merely to be learnt as a task, but to be assimilated as a part of daily thought, and brought again and again before the mind with ever-renewed encouragement.? Bertrand Russell Graduate Assistant (PhD) Archie Carr Center for Sea Turtle Research Department of Biology University of Florida Tel: (+1) 352-282-5616 Website: http://accstr.ufl.edu/ Skype: geoglen12 Email: george.glen at ufl.edu<mailto:george.glen at ufl.edu> [[alternative HTML version deleted]]
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