See ?optim 
See ?mle (stats4 package)
or  help.search("MLE") 

 Justin BEM
BP 1917 Yaoundé
Tél (237) 99597295
(237) 22040246




________________________________
De : "b88207001@ntu.edu.tw" <b88207001@ntu.edu.tw>
À : r-help@r-project.org
Envoyé le : Lundi, 9 Mars 2009, 6h55mn 20s
Objet : [R] How to optimize a matrix

I would like to estimate the sigma matrix of multinormal distribution through ML.
But I don't know how to optimize the parameter sigma.

Could any one help me?

Thank you so much~

Yen Lee

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