nlmin function

["Bernardo Ribeiro" <bribeiro@softhome.net>]

    I'm trying to use the nlmin function, but it keeps telling me that there's no default for ine of the parameters.

 

I'm trying to minimize

-1* (-n/2*log(sigma2))+0.5*sum((y-g(alfa,beta))^2)/sigma2

 

Any clues?

 

Mail to: bribeiro@softhome.net