65add949bbcd61e2b1c3b8dc33390ac15d19cd84,linearmodels/shared/linalg.py,,has_constant,#Any#Any#,9

Before Change

    has_const = has_const or rank < min(x.shape)
    loc = None
    if has_const:
        out = lstsq(x, np.ones((n, 1)), rcond=None)
        beta = out[0].ravel()
        loc = int(np.argmax(np.abs(beta) * x.var(0)))
    return bool(has_const), loc

After Change

    loc = None
    if has_const:
        normed_var = x.var(0) / np.abs(x).max(0)
        loc = int(np.argmin(normed_var))

    return bool(has_const), loc

Instances