On Tue, 19 Feb 2013, artur tarassow wrote: > The following generates recheck=0 but I think it should be 1 (at least to > the function description): > > <hansl> > scalar check = NA > check > recheck = isnan(check) > recheck > </hansl> No, the value of check is NA (Not Available, missing value), which is not the same as NaN (Not a Number). Use missing() to check for NAs. # isnan example matrix m = {0/0} eval isnan(m[1]) Allin Cottrell _______________________________________________ Gretl-users mailing list Gretl-users(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-users