[Gretl-devel] Re: regls nz_print problem (was Re: Internal error from the regls addon)

Am 21.05.2022 um 01:08 schrieb Cottrell, Allin: > On Fri, May 20, 2022 at 3:17 PM Sven Schreiber <svetosch(a)gmx.net&gt; wrote: >> >> Am 18.05.2022 um 14:13 schrieb Sven Schreiber: >>> Hi, >>> I'm trying to use the regls() function >> >> ... there's one more: I think regls's internal nz_print function has a >> small bug in the line "len = max(strlen(S))". The problem is that S and >> by implication strlen(S) may be empty, and then max() throws an error. >> (I got an error from that in a corner case.) >> I would suggest to enclose the entire printing at the end of the >> function with a check like "if nelem(S)". > > I'll look into it, but could you give me an idea of what the "corner > case" involved? Well, I think it happens when no regressors are left in the model. This could be because a certain single lambda is imposed, or simply because the regressors are really bad predictors such that the best model doesn't need them.