set_default_dtype

class brainpy.connect.set_default_dtype(mat_dtype=None, idx_dtype=None)

Set the default dtype.

Use this method, you can set the default dtype for connetion matrix and connection index.

For examples:

>>> import numpy as np
>>> import brainpy as bp
>>>
>>> conn = bp.conn.GridFour()(4, 4)
>>> conn.require('conn_mat')
Array([[False,  True, False, False],
       [ True, False,  True, False],
       [False,  True, False,  True],
       [False, False,  True, False]], dtype=bool)
>>> bp.connect.set_default_dtype(mat_dtype=np.float32)
>>> conn = bp.conn.GridFour()(4, 4)
>>> conn.require('conn_mat')
Array([[0., 1., 0., 0.],
       [1., 0., 1., 0.],
       [0., 1., 0., 1.],
       [0., 0., 1., 0.]], dtype=float32)

Parameters:

• mat_dtype (type) – The default dtype for connection matrix.

• idx_dtype (type) – The default dtype for connection index.