Re: [Gretl-users] idempotence and symmetry
On Mon, 11 May 2009, Sebastiano Putoto wrote:
Thank you very much Mr Lucchetti. Mr Cottrell also replied and
suggested
another way, using
scalar meq = (m1=m2) with values 1 if right, NA if wrong.
1 if right, 0 if wrong. But that's a test for strict equality.
Note that on a digital computer matrices that "should be" equal
(as in my example of a given matrix and the inverse of its
inverse) will generally _not_ be exactly equal, if any non-trivial
calculation is involved.
Allin Cottrell