mars.tensor.setdiff1d#
- mars.tensor.setdiff1d(ar1, ar2, assume_unique=False)[源代码]#
Find the set difference of two tensors.
Return the unique values in ar1 that are not in ar2.
- 参数
ar1 (array_like) – Input tensor.
ar2 (array_like) – Input comparison tensor.
assume_unique (bool) – If True, the input tensors are both assumed to be unique, which can speed up the calculation. Default is False.
- 返回
setdiff1d – 1D tensor of values in ar1 that are not in ar2. The result is sorted when assume_unique=False, but otherwise only sorted if the input is sorted.
- 返回类型
Tensor
示例
>>> import mars.tensor as mt >>> a = mt.array([1, 2, 3, 2, 4, 1]) >>> b = mt.array([3, 4, 5, 6]) >>> mt.setdiff1d(a, b).execute() array([1, 2])