Re: [Gretl-users] reversing / flipping a matrix

On Fri, 10 Jul 2009, Sven Schreiber wrote: > Dear gretl users, > > yesterday I needed to flip a matrix/vector around by reversing the order > of the elements. (I guess like rev() or flipud() in other languages.) > But I didn't find the function to do that, so I used an inefficient > workaround using msortby(). But since this seems like quite basic > functionality I think I either missed something or it should be added, > right? Right. I must have said to myself "I need to do this. Oh well, not now" a thousand times. It's now in CVS. The user-level function is called rev(). Example: ? A = rev(I(3)) A = rev(I(3)) Generated matrix A ? print A print A A (3 x 3) 0 0 1 0 1 0 1 0 0