Posts Tagged ‘ computer simulations ’

Vanilla C code for the Stochastic Simulation Algorithm

October 24, 2011
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Vanilla C code for the Stochastic Simulation Algorithm

The Gillespie stochastic simulation algorithm (SSA) is the gold standard for simulating state-based stochastic models. If you are a R buff, a SSA novice and want to get quickly up and running stochastic models (in particular ecological models) that are not … Continue reading →

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GillespieSSA 0.5-4 is released

August 16, 2010
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GillespieSSA 0.5-4 is released

I just uploaded GillespieSSA 0.5-4 to CRAN. It should be  just a matter of days before it has propagated itself across all mirrors. This release consists of minor revisions with no (intended) changes in functionality. The main change (and it is … Continue reading →

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High-performance computing in R at useR! 2008

August 12, 2008
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High-performance computing in R at useR! 2008

The useR! 2008 meeting is about to commence. Although I am not able to go this year I will be keeping a close eye on the talks and slides that (I assume) will be posted.  Last years useR! meeting (which … Continue reading →

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Paper on the Gillespie Stochastic Simulation Algorithm in press

February 1, 2008
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Paper on the Gillespie Stochastic Simulation Algorithm in press

Just got news that my revisions to the reviewer’s comments on my paper GillespieSSA: Implementing the Gillespie Stochastic Simulation Algorithm in R were accepted. Hence, this paper is not officially in press in the Journal of Statistical Software. Here’s the … Continue reading →

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GillespieSSA 0.5-1 is released

January 15, 2008
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GillespieSSA 0.5-1 is released

I just uploaded GillespieSSA 0.5-1 to CRAN. Now it’s just a matter of days before it has propagated itself across all CRAN mirrors. This version consists primarily of revisions I made in response to the reviewer comments on the paper … Continue reading →

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GillespieSSA 0.3-1 released

October 4, 2007
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GillespieSSA 0.3-1 released

I recently rolled up the new version of the GillespieSSA package, version 0.3-1. The tar ball of the new version is posted on its web page (here). I also submitted it to CRAN so in (due time) it should appear … Continue reading →

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119 days of number crunching…

August 23, 2007
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119 days of number crunching…

Just checked on the 70000+ simulations I submitted to the Cow last night. The purpose of these runs is to explore a given system (the logistic growth model in this case) using different implementations of the stochastic simulation algorithm (aka … Continue reading →

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Cow chewing on GillespieSSA

August 22, 2007
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Cow chewing on GillespieSSA

Sorry blog for the long silence. Lately I have been juggling several time critical projects and there hardly seems to be time for such mundane activities such as sleeping, eating, never mind shaving (someone pointed out that I am starting … Continue reading →

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Looking for a few good beta testers

August 7, 2007
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Looking for a few good beta testers

Sitting in a dreary hotel room in San Jose with Interstate 101 on my left and a burger joint/truck stop on my right (see previous post Report from the meeting of the Ecological Society of America in San Jose for … Continue reading →

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GillespieSSA poster

August 3, 2007
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GillespieSSA poster

Finished my poster for the useR! 2007 meeting. It is also posted on the GillespieSSA web page as part of the package documentation. Now, all I have to do is show it off in Ames next week…, oh, and I … Continue reading →

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