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Subject: CORMAS MESSAGE
From: Pablo Gomez Mourelo (pgmourelo@etsii.upm.es)
Date: Tue Jun 07 2005 - 09:54:21 CEST
Dear all,
I would like to suggest something. I am receiving many spam messages
nowadays, and I only can distinguish spam messages from interesting ones
on their subject.
The subject of some messages on the cormas list often are confused with
spam messages. I would suggest and plead us to add the word "cormas" in
the subject of future messages.
I hope you welcome this idea.
All the best,
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
Pablo Gómez Mourelo
Departamento de Matemática Aplicada
ETSI Industriales
C/ Jose Gutierrez Abascal, 2
28006 MADRID
SPAIN
Universidad Politécnica de Madrid
Phone: +34 91 336 3105
Fax: +34 91 336 3001
+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
Romain Lorrilliere wrote:
> Thanks for your quick answer, but I have a new ask.
>
> In my grey heron colonisation model, I would like to average model
> outcomes over several simulations (Monte Carlo). Does anyone know how
> to do that in Cormas.
>
> If it's not possible to get the average results directly in Cormas. I
> would like get a file ascii of state value for each cell after each
> simulation. But the software does not export any data.
>
> Thank you in advance!
>
> Romain
>
> ________________________________________________
>
> Lorrilliere Romain
>
> Adresse postale : 3 allée Charles Lindbergh
>
> 44800 Saint Herblain
>
> Tel mobil : 06 81 70 90 70
>
> Tel : 02 40 63 22 23
>
> Email : lorrilliere.romain@neuf.fr
>
> -----Message d'origine-----
> *De :* owner-cormas@cirad.cirad.fr
> [mailto:owner-cormas@cirad.cirad.fr] *De la part de* Christophe Le Page
> *Envoyé :* mardi 24 mai 2005 14:55
> *À :* 'Romain Lorrilliere'; cormas@cirad.fr
> *Objet :* RE : drawing of lots
>
> Bonjour Romain,
>
> You need to write two functions, the last one being the main one:
>
> probaPoisson: mu value: i
> ^(mu ** i * mu negated exp / i factorial) asFloat
>
> getValueFromPoisson: mu
> | randomValue i found cumul |
> randomValue := self random.
> i := -1.
> found := false.
> cumul := 0.
> [found not] whileTrue:
> [i := i + 1.
> cumul := cumul + (self probaPoisson: mu value: i).
> found := randomValue < cumul].
> ^i
>
> Let me know if this is what you needed.
>
> Please send us your manuscript by the end of your master thesis, I'll
> add it to the list of students' contributions. I'm quite sure your
> Cormas model will greatly interest some people around !
>
> Clp
>
> -----Message d'origine-----
> *De :* owner-cormas@cirad.fr [mailto:owner-cormas@cirad.fr] *De la
> part de* Romain Lorrilliere
> *Envoyé :* lundi 23 mai 2005 16:38
> *À :* cormas@cirad.fr
> *Objet :* drawing of lots
>
> Dear members,
>
> I’m modelling the dynamic population of the grey Heron and i d
> like to define some t to t+1 transitions in the status of cells
> according to a random drawing from a Poisson distribution.
>
> Does anyone have an idea on how i could achieve that?
>
> Thinks
>
> Romain
>
> ________________________________________________
>
> Lorrilliere Romain
>
> Etudiant Master 2 Muséum National d'Histoire Naturelle
>
> Evolution, Patrimoine Naturel et Sociétés
>
> Specialité :Systèmatique, Evolution & Paléontologie
>
> Orientation : Informatique appliquée à la biodiversité
>
> Adresse postale : 3 allée Charles Lindbergh
>
> 44800 Saint Herblain
>
> Tel mobil : 06 81 70 90 70
>
> Tel : 02 40 63 22 23
>
> Email : lorrilliere.romain@neuf.fr
>