set_idxs

nrv.backend.set_idxs(_i: ndarray | int | tuple | None, _n: int | None) → ndarray

convert an object _i into an 1D array of index

Parameters:

• _i (np.ndarray | int | tuple | None) –

  Indexes considered, can be either:

  • None (default): all indexes from 0 to _n-1

  • int: single indexe corresponding to _i

  • tuple: all indexes between _i[0] and _i[1]

• _n (int | None) – Indexes number when _i is None

Return type:

np.ndarray