Re: [Gretl-users] maximum like. conditions

On 29-11-2009, at 12:27, Davor Horvatic wrote: > ? mle ll = check ? (-0.5*(log(h) + (e^2)/h)) > ? series e = y - mu > ? series h = var(y) > ? series h = omega + alpha*(e(-1))^2 + beta*h(-1) > ? scalar check = (alpha>0)& (beta>0) > ? params mu omega alpha beta > ? end mle > Syntax error in command line > > Error executing script: halting > >> end mle >> A. --------------------------------------------- I replaced the& in the scalar check = .. line with&& and got this ? mle ll = check ? (-0.5*(log(h) + (e^2)/h)) : NA ? series e = y - mu ? series h = var(y) ? series h = omega + alpha*(e(-1))^2 + beta*h(-1) ? scalar check = (alpha>0)&& (beta>0) ? params mu omega alpha beta ? end mle Data types not conformable for operation Error executing script: halting > end mle > B. ---------------------------------------------- I replaced the line scalar check ... by the following three lines scalar checka = (alpha>0) scalar checkb = (beta>0) scalar check = checka+checkb and now the script runs without error to completion. Berend _______________________________________________ Gretl-users mailing list Gretl-users(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-users