Re: [Numpy-discussion] linalg.eigh orders eigenvalues/eigenvectors differently than linalg.eig

Zachary Pincus schrieb:

Hello all,

It seems that the 'eigh' routine from numpy.linalg does not follow the same convention as numpy.linalg.eig in terms of the order of the returned eigenvalues. (And thus eigenvectors as well...)

I was told on this list that the ordering should not be relied upon, and that it might change in the future. So it seems that user code should explicitly re-order the eigenvalues (and corresponding eigenvectors, probably using argsort and fancy indexing -- if those are the right terms). ...

scipy.linalg.) If not a bug, or not-fixable-now, then at least some documentation as to the convention regarding ordering of eigenvalues is probably worthwhile...

true cheers, sven