[Gretl-users] Re: Problem with copy-as-csv matrix with eigenvalues

On 04/03/2026 01:43, Alecos Papadopoulos wrote: I can reproduce the problem, it shouldn't be hard to fix. In the meantime, you can circumvent the problem by defining <hansl> foo = Re(XXeig) ~ Im(XXeig) </hansl> That said, I see your eigenvalues are all real and positive, which means that the matrix they come from is positive definite. If it's also symmetric, you'll want to use the much more efficient specialised function eigensym() function instead of eigen(). -- ------------------------------------------------------- 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 -------------------------------------------------------