def matrix_undirected_weighted(user, interaction=None):
    matrix = _interaction_matrix(user, interaction=interaction)
    result = [[0 for _ in range(len(matrix))] for _ in range(len(matrix))]

    for a in range(len(matrix)):
        for b in range(len(matrix)):
            if a != b and matrix[a][b] and matrix[b][a]:
                result[a][b] = matrix[a][b] + matrix[b][a]
            elif matrix[a][b] is None or matrix[b][a] is None:
                result[a][b] = None
            else:
                result[a][b] = 0

    return result
Returns an undirected, weighted matrix for call, text and call duration
dataset/ETHPy150Open yvesalexandre/bandicoot/bandicoot/network.py/matrix_undirected_weighted