1
|
|
|
from typing import Type |
2
|
|
|
|
3
|
|
|
import numpy as np |
4
|
|
|
|
5
|
|
|
from nptyping._ndarray_meta import _NDArray |
6
|
|
|
|
7
|
|
|
|
8
|
|
|
class NDArray(np.ndarray, _NDArray): |
9
|
|
|
""" |
10
|
|
|
NDArray is a representation of numpy.ndarray. |
11
|
|
|
|
12
|
|
|
An Array with any dimensions of any size and any type: |
13
|
|
|
>>> NDArray |
14
|
|
|
NDArray[(typing.Any, ...), typing.Any] |
15
|
|
|
|
16
|
|
|
An array with 1 dimension of any size and any type: |
17
|
|
|
>>> from typing import Any |
18
|
|
|
>>> NDArray[Any] |
19
|
|
|
NDArray[(typing.Any,), typing.Any] |
20
|
|
|
|
21
|
|
|
An array with 1 dimension of size 3 and any type: |
22
|
|
|
>>> NDArray[3] |
23
|
|
|
NDArray[(3,), typing.Any] |
24
|
|
|
|
25
|
|
|
An array with any dimensions of any size and type int: |
26
|
|
|
>>> NDArray[int] |
27
|
|
|
NDArray[(typing.Any, ...), int] |
28
|
|
|
|
29
|
|
|
An array with 1 dimension of size 3 and type int: |
30
|
|
|
>>> NDArray[3, int] |
31
|
|
|
NDArray[(3,), int] |
32
|
|
|
|
33
|
|
|
An array with any dimensions of size 3 and type int: |
34
|
|
|
>>> NDArray[(3, ...), int] |
35
|
|
|
NDArray[(3, ...), int] |
36
|
|
|
|
37
|
|
|
An array with 3 dimensions of sizes 3, 3, 5 and type int: |
38
|
|
|
>>> NDArray[(3, 3, 5), int] |
39
|
|
|
NDArray[(3, 3, 5), int] |
40
|
|
|
|
41
|
|
|
""" |
42
|
|
|
|
43
|
|
|
@staticmethod |
44
|
|
|
def type_of(arr: np.ndarray) -> Type['NDArray']: |
45
|
|
|
""" |
46
|
|
|
Return an nptyping.NDArray type T such that isinstance(arr, T). |
47
|
|
|
|
48
|
|
|
>>> NDArray.type_of(np.array([[1, 2], [3, 4.0]])) |
49
|
|
|
NDArray[(2, 2), float64] |
50
|
|
|
|
51
|
|
|
:param arr: any numpy.ndarray. |
52
|
|
|
:return: a nptyping.NDArray. |
53
|
|
|
""" |
54
|
|
|
return NDArray[arr.shape, arr.dtype] |
55
|
|
|
|