[Gretl-users] Re: sorting by string-valued series

On Wed, 2 Sep 2020, Allin Cottrell wrote: You spoilsport. :) While we're at it: it may be useful, at times, to sort on more than one series. Or at least, I had to do this from time to time. At present, you can do this by constructing an artificial key series. Example with the Mroz dataset: <hansl> open mroz87 series key = WE * 100 + WA dataset sortby key print WE WA --byobs --range=1:32 </hansl> However, this is neither particularly efficient nor elegant. Would you think it worthwhile to add a list as a possible argument to "dataset sortby"? Eg <pseudo-hansl> list SORT = WE WA dataset sortby SORT </pseudo-hansl> ------------------------------------------------------- Riccardo (Jack) Lucchetti Dipartimento di Scienze Economiche e Sociali (DiSES) Università Politecnica delle Marche (formerly known as Università di Ancona) r.lucchetti(a)univpm.it http://www2.econ.univpm.it/servizi/hpp/lucchetti -------------------------------------------------------