[Gretl-devel] core sample

Dear all (and merry Xmas to you), we don't have 3-D arrays like Matlab has, but we do have matrix arrays, which you can more or less use to the same effect. I thought it would be nice to have a function (provisionally called coresample(), as in those holes you drill through the ground) that fills a matrix with selected elements from a matrix array. Example script attached. My questions are: (i) is this useful enough to be made a standard function, or should we just mention this kind of technique in the cheat sheet chapter (if at all?) (ii) in case the answer is yes, should we add this to libgretl or just provide the function in the "extra" addon? ------------------------------------------------------- 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 -------------------------------------------------------