mindspore.ops.csr_log
- mindspore.ops.csr_log(x: CSRTensor)[source]
Returns the natural logarithm of a CSRTensor element-wise.
\[y_i = \log_e(x_i)\]Warning
If the input value of operator Log is within the range (0, 0.01] or [0.95, 1.05], the output accuracy may be affacted.
- Parameters
x (CSRTensor) – The value must be greater than 0.
- Returns
CSRTensor, has the same shape and dtype as the x.
- Raises
- Supported Platforms:
Ascend
GPU
CPU
Examples
>>> from mindspore import dtype as mstype >>> from mindspore import Tensor, ops, CSRTensor >>> indptr = Tensor([0, 1, 2, 2], dtype=mstype.int32) >>> indices = Tensor([3, 0], dtype=mstype.int32) >>> values = Tensor([-1, 2], dtype=mstype.float32) >>> shape = (3, 4) >>> x = CSRTensor(indptr, indices, values, shape) >>> output = ops.csr_log(x) >>> print(output.values) [ nan 0.69314575]