[Gretl-devel] Re: xmin/xmax

Am 14.10.2024 um 14:57 schrieb Riccardo (Jack) Lucchetti: On 14/10/2024 15:53, Cottrell, Allin wrote: On Mon, Oct 14, 2024 at 9:25 AM Riccardo (Jack) Lucchetti <p002264(a)staff.univpm.it&gt; wrote: more intuitive to use the xmin() function, as in "series m = xmin(x, y)". The function, however, is at present scalar-only. Just saying, the min() function will do what's wanted here, for 2 or more series, at the cost of defining a list, as in <hansl> open data4-10 series mymin = min(deflist(ENROLL, CATHOL)) </hansl> Aaaah, very clever, I hadn't thought of that. That said, I still think xmin(a,b) would probably be a more straightforward solution for the average user. Any objection to my patch? Haven't looked at your patch (does it handle NAs as wanted?), but let me put the xmax/xmin functions in perspective: I tend to find them a bit awkward, allowing only _exactly_ two comparison arguments. Every time I use them they feel a bit clunky. I believe their existence predates the generalization of max and min to matrix arguments. Actually, I formulated my thoughts already 8 years ago, so let me just link to them: https://gretlml.univpm.it/hyperkitty/list/gretl-devel@gretlml.univpm.it/m...