Dear ALL,

I am trying to port an eigenalysis function that runs smoothly on Numpy 1.12 but fail miserably on Numpy 1.13 or higher with the dreadful error "boolean index did not match indexed array along dimension 1".

Here is a fragment of the code, where the error occurrs:

    evals, evecs = np.linalg.eig(Syy)
    idx = evals.argsort()[::-1]
    evals = np.real(evals[idx])
    U = np.real(evecs[:, idx])
    evals = evals[evals > tolerance]
    U = U[:, evals > tolerance] # Here is where the error occurs

So, I ask: is there a way out of this?

Thanks in advance for any assistance you can provide.