30.11.2014 Views

La méthode de Maximum Likelihood

La méthode de Maximum Likelihood

La méthode de Maximum Likelihood

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

LBA, <strong>de</strong> la parcimonie à la vraisemblance<br />

Lorsqu’il y a excès d’un <strong>de</strong>s<br />

trois types <strong>de</strong> sites informatifs<br />

possibles (rouge), <strong>de</strong>ux<br />

scénarios sont possibles :<br />

A<br />

B<br />

C<br />

D<br />

A A A G A C A T<br />

G A T A C A A A<br />

G T T A A A C A<br />

A T A G C C C T<br />

A<br />

B<br />

A<br />

convergences<br />

D<br />

D<br />

synapomorphies<br />

C<br />

B<br />

C<br />

<strong>La</strong> métho<strong>de</strong> <strong>de</strong> MP retiendra automatiquement la topologie <strong>de</strong><br />

gauche, qui implique moins <strong>de</strong> changements<br />

(synapomorphie = 1 changement alors que convergence = 2 changements )

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!