[Gretl-devel] Re: inverse of stack() function

On Fri, 19 Feb 2021, Riccardo (Jack) Lucchetti wrote:

> My question is: is there a simpler way to accomplish the above? And if > there isn't, would it be worthwhile to add this function to the extra > package? I can't think of an easier way of doing this, and your function seems to me a good candidate for "extra". One possible modification would be: function matrix unstack(series x, series names[null], \    strings S[null]) where the caller needs to supply one of @names or @S, allowing for the possibility that there's no handy series holding group names and you therefore want to submit an array of group names directly. Or, drop the @S argument but be ready to construct automatic names (e.g. "unit%d") in case @names is not given.