[Gretl-users] matrices and user functions

Sven asked -- maybe a few weeks ago -- about the possibility of allowing users to define matrices via the gretl GUI, in the context of supplying matrix arguments to a packaged function. This is now in CVS. When you call a function via the function package GUI and a matrix is wanted, there's a "More..." button beside the argument slot, and clicking that takes you a matrix definition dialog. There you have 3 choices: select a list of series (you get a matrix with a series per column); construct the matrix numerically (in this case you start by choosing dimensions and an initial fill value, then you get a spreadsheet-type editor); or construct the matrix using a formula. You can also define a matrix via the new menu item /Data/Define matrix. In addition, when matrices are defined (via the GUI or the command line or via a script), they appear as icons in the Session View window. There you can view, edit or delete them. Allin.