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A new version of the software ParaDis (for Parasites Distribution) is
available at the site:
http://www.bondy.orstom.fr/~pichon/
This software analyses the frequencies of hosts versus their parasite
load. It is based on the Negative Binomial Distribution. When the
frequency of zero-parasites is composite (false and true negatives), as
it frequently occurs in natural situations, the zero-Truncated Binomial
Distribution is also used. In both cases maximum likelihood
method is used. A program allows to compare the aggregation of several
observed distributions. Simulation of a mixture of NB processes is also
implemented.
G. Pichon
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Gaston Pichon Entomo-Parasitologue (modelisation)
IRD/ORSTOM GP 73 "Maladies a vecteurs"
Centre Orstom d'Ile-de-France Tel (33 1 / 01) 48 02 59 76
Labo. d'Informatique Appliquee Fax (33 1 / 01) 48 47 30 88
32, avenue Henri Varagnat e-mail pichon at bondy.orstom.fr
93143 BONDY Cedex (FRANCE)
http://www.bondy.orstom.fr/~pichon
(logiciel telechargeable sur la distribution des charges parasitaires)
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"Le vecteur pique toujours deux fois"
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