Re: [Gretl-users] maximum like. conditions

On 29-11-2009, at 18:06, Allin Cottrell wrote: > > ;-) This is a subtle bug (if it's a bug; I'm not sure) with an > easy workaround. With the initialization > > scalar alpha = 0.4 > scalar beta = 0 > > The "check" condition -- alpha>0 && beta>0 -- is violated on the > first iteration. Therefore the formula for "ll" comes down to > > ll = NA > > This generates a scalar value, which is not allowed in the mle > context. The fix is to initialize such that the check is > satisfied on the first round, e.g. > > scalar beta = 0.001 I should have seen that. I don't think you can call this a bug. But a different error message (got scalar, expected <...> for likelihood in mle ) would be nice.