Re: [Gretl-users] GMM run finishes with no output

-----Original Message----- From: gretl-users-bounces(a)lists.wfu.edu [mailto:gretl-users- bounces(a)lists.wfu.edu] On Behalf Of Allin Cottrell Sent: Tuesday, November 09, 2010 4:18 AM To: Gretl list Subject: Re: [Gretl-users] GMM run finishes with no output On Mon, 8 Nov 2010, Ofer Cornfeld wrote: > I have been running GMM for a while with great results but > sometimes the run finishes the following line is printed, with > no further output > > Tolerance = 1e-018 Thanks for the report. What happened in the case where you saw no output was that the "outer" iteration of iterated GMM failed to converge. Normally you would see an error message in that case: "The convergence criterion was not met" but this was suppressed by your specification set halt_on_error off That was a bug: setting halt_on_error to "off" should stop gretl from aborting the execution of a script on error, but it shouldn't stop the printing of error messages; this is now fixed in CVS and snapshots. More substantively, the problem in this case was that the outer GMM iteration had not converged within 200 iterations, where the somewhat arbitrary maximum of 200 was hard-wired. In CVS and snapshots I've done two things: (1) raised the maximum to 250, and (2) provided a "set" variable, "gmm_maxiter", to control this parameter. So, if you see the non-convergence error message from iterated GMM and want gretl to try harder, you can now do, for example, set gmm_maxiter 500 and try again. Allin Cottrell _______________________________________________ Gretl-users mailing list Gretl-users(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-users