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paddle.Tensor. fill_diagonal_tensor ( x: Tensor, y: Tensor, offset: int = 0, dim1: int = 0, dim2: int = 1, name: str | None = None ) → Tensor
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This function fill the source Tensor y into the x Tensor’s diagonal.

Parameters

  • x (Tensor) – x is the original Tensor

  • y (Tensor) – y is the Tensor to filled in x

  • dim1 (int,optional) – first dimension with respect to which to fill diagonal. Default: 0.

  • dim2 (int,optional) – second dimension with respect to which to fill diagonal. Default: 1.

  • offset (int,optional) – the offset to the main diagonal. Default: 0 (main diagonal).

  • name (str|None, optional) – Name for the operation (optional, default is None). For more information, please refer to Name.

Returns

Tensor, Tensor with diagonal filled with y.

Examples

>>> import paddle

>>> x = paddle.ones((4, 3)) * 2
>>> y = paddle.ones((3,))
>>> nx = x.fill_diagonal_tensor(y)
>>> print(nx.tolist())
[[1.0, 2.0, 2.0], [2.0, 1.0, 2.0], [2.0, 2.0, 1.0], [2.0, 2.0, 2.0]]