Source code for xorbits._mars.tensor.arithmetic.fabs
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# Licensed under the Apache License, Version 2.0 (the "License");
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# http://www.apache.org/licenses/LICENSE-2.0
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import numpy as np
from ... import opcodes as OperandDef
from ..utils import infer_dtype
from .core import TensorUnaryOp
from .utils import arithmetic_operand
@arithmetic_operand(sparse_mode="unary")
class TensorFabs(TensorUnaryOp):
_op_type_ = OperandDef.FABS
_func_name = "fabs"
[docs]@infer_dtype(np.fabs)
def fabs(x, out=None, where=None, **kwargs):
"""
Compute the absolute values element-wise.
This function returns the absolute values (positive magnitude) of the
data in `x`. Complex values are not handled, use `absolute` to find the
absolute values of complex data.
Parameters
----------
x : array_like
The tensor of numbers for which the absolute values are required. If
`x` is a scalar, the result `y` will also be a scalar.
out : Tensor, None, or tuple of Tensor and None, optional
A location into which the result is stored. If provided, it must have
a shape that the inputs broadcast to. If not provided or `None`,
a freshly-allocated tensor is returned. A tuple (possible only as a
keyword argument) must have length equal to the number of outputs.
where : array_like, optional
Values of True indicate to calculate the ufunc at that position, values
of False indicate to leave the value in the output alone.
**kwargs
Returns
-------
y : Tensor or scalar
The absolute values of `x`, the returned values are always floats.
See Also
--------
absolute : Absolute values including `complex` types.
Examples
--------
>>> import mars.tensor as mt
>>> mt.fabs(-1).execute()
1.0
>>> mt.fabs([-1.2, 1.2]).execute()
array([ 1.2, 1.2])
"""
op = TensorFabs(**kwargs)
return op(x, out=out, where=where)