gemmr.util.align_weights

gemmr.util.align_weights(v, vtrue, copy=True, return_sign=False)

Align vectors in rows of v such that they have a positive dot-product with vtrue.

Parameters:

• v (np.ndarray (.., n_features)) – each vector of length n_feature will be compared to vtrue and if the dot-product is negative will be multiplied by -1
• vtrue (np.ndarray (n_features,)) – the reference vector
• copy (bool) – whether a copy of v is made before signs are changed
• return_sign (bool) – if True return signs of vector in addition to aligned vectors

Returns:

• aligned (np.ndarray (n_vectors, n_features)) – aligned vectors
• signed (np.ndarray (n_vectors, n_features)) – (only if return_sign == True). Signs (-1, 0 or 1) of original vectors