torch.from_numpy
(ndarray) → Tensor
Creates a Tensor from a numpy.ndarray.
The returned tensor and ndarray
share the same memory. Modifications to the tensor will be reflected in the ndarray
and vice versa. The returned tensor is not resizable.
It currently accepts ndarray
with dtypes of numpy.float64
, numpy.float32
, numpy.float16
, numpy.int64
, numpy.int32
, numpy.int16
, numpy.int8
, numpy.uint8
, and numpy.bool
.
Example:
代码语言:javascript复制>>> a = numpy.array([1, 2, 3])
>>> t = torch.from_numpy(a)
>>> t
tensor([ 1, 2, 3])
>>> t[0] = -1
>>> a
array([-1, 2, 3])