Versioned name: Range-1

Category: Generation

Short description: Range operation generates a sequence of numbers according input values [start, stop) with a step.

Attributes:

No attributes available.

Inputs:

1: "start" - If a value is not given then start = 0. A scalar of type T. Required.
2: "stop" - A scalar of type T. Required.
3: "step" - If a value is not given then step = 1. A scalar of type T. Required.

Outputs:

1: A tensor with type matching 2nd tensor.

Types

T: any numeric type.

Detailed description:

Range operation generates a sequence of numbers starting from the value in the first input (start) up to but not including the value in the second input (stop) with a step equal to the value in the third input, according to the following formula:

$[start, start + step, start + 2 * step, ..., start + K * step], where K is the maximal integer value that satisfies condition start + K*step < stop, then step is positive value and start + K*step > stop, then step is negative value.$

Examples

Example 1: positive step

<layer ... type="Range">
    <input>
        <port id="0">  
        </port>
        <port id="1">  
        </port>
        <port id="2">  
        </port>
    </input>
    <output>
        <port id="3">
            <dim>7</dim> 
        </port>
    </output>
</layer>

Example 2: negative step

<layer ... type="Range">
    <input>
        <port id="0">  
        </port>
        <port id="1">  
        </port>
        <port id="2">  
        </port>
    </input>
    <output>
        <port id="3">
            <dim>7</dim> 
        </port>
    </output>
</layer>