IsFinite¶

Versioned name : IsFinite-10

Category : Comparison

Short description : IsFinite performs element-wise test for finiteness (not Infinity and not NaN) on elements of a given input tensor. It returns the boolean mask of a given tensor which maps NaN and Infinity to False and all other values to True IsFinite operation has no attributes.

Detailed description : IsFinite returns the boolean mask of the input tensor in which False corresponds to NaN and Infinity and True to all other values.

The output tensor has the same shape as the input tensor.
The i ‘th element of the output tensor is False if i ‘th element of the input tensor is NaN or Inf. Otherwise, it is True.
For example, for a given input tensor [NaN, 2.1, 3.7, Inf] the output tensor is [False, True, True, False].

Attributes

\*IsFinite\* operation has no attributes.

Inputs

1 : A tensor of type T and arbitrary shape. Required.

Outputs

1 : The result of element-wise IsFinite operation. A tensor of type boolean and the same shape as input tensor.

Types

T : any supported floating-point type.

Examples

<layer ... type="IsFinite">
    <input>
        <port id="0" precision="FP32">
            <dim>256</dim>
            <dim>56</dim>
        </port>
    </input>
    <output>
        <port id="1" precision="BOOL">
            <dim>256</dim>
            <dim>56</dim>
        </port>
    </output>
</layer>

<layer ... type="IsFinite">
    <input>
        <port id="0" precision="FP32">
            <dim>4</dim>                <!-- Input value is: [NaN, 2.1, 3.7, Inf] -->
        </port>
    </input>
    <output>
        <port id="1" precision="BOOL">
            <dim>4</dim>                <!-- Output value is: [False, True, True, False] -->
        </port>
    </output>
</layer>