On Wed, 10 Jul 2013, Alecos Papadopoulos wrote:
 Just a note that
 in model 2 (that is virtually identical to model 1 as regards to
 estimates and final gradient values), the value of the logl appears
 positive. 
Since you add a positive constant to each observation, why would that be 
surprising?
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   Riccardo (Jack) Lucchetti
   Dipartimento di Scienze Economiche e Sociali (DiSES)
   Università Politecnica delle Marche
   (formerly known as Università di Ancona)
   r.lucchetti(a)univpm.it
   
http://www2.econ.univpm.it/servizi/hpp/lucchetti
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