Re: [Gretl-devel] subsampling and out-of-sample values

Here's another problem that may be related, because a common theme is the combination of panel data and subsampling. But now it's about the pxsum() function. Here's a minimal example script: <hansl> nulldata 12 setobs 4 1:1 --stacked-time-series series hey = normal() hey[1:3] = NA genr unit smpl unit < 3 --restrict series check1 = pxsum(hey) series check2 = pxsum(misszero(hey)) series check3 = pxsum(ok(hey)) </hansl> 'check1' will be correct, with missings in positions 1:3 and 2:3. (There has been a feature request on the tracker by myself for a long time calling for a behavior of pxsum that ignores missings, but that has never been done AFAIK and thus is a different issue.) But 'check2' and 'check3' will be full of missings / completely empty at least within the current subsample, and that is clearly wrong IMO. Instead check2 and check3 should have no missings at all. Hope it's easy to find and fix the bug.