RANGE function

Synopsis
This function creates a numeric array that increases or decreases linearly, based on a starting value and a slope.
Variations
RANGE(Start, Count)
Returns an array, incrementing the previous element's value by one at each index.
Details | Examples | Details and examples
Parameters
Start

Specifies the value of the first element of the array.

Supported types: Numeric.
Count

Specifies the number of elements to add to the array.

Supported types: Numeric.
Returns
Returned types: Numeric array.
Examples
1.

The following example returns an array of 6 elements starting at 50. The function returns [50, 51, 52, 53, 54, 55].

RANGE(50, 6)
2.

This example generates an array with the values from 0 to 255. If applied to an 8-bit image as a lookup table (LUT), the image remains unchanged.

RANGE(0, 256)
RANGE(Start, Step, Count)
Returns an array, incrementing the previous element's value by the Step parameter's value at each index.
Details | Examples | Details and examples
Parameters
Start

Specifies the value of the first element of the array.

Supported types: Numeric.
Step

Specifies the interval between values added to the array.

Supported types: Numeric.
Count

Specifies the number of elements to add to the array.

Supported types: Numeric.
Returns
Returned types: Numeric array.
Examples
1.

The following example returns [10, 12.5, 15].

RANGE(10, 2.5, 3)
2.

This example returns [2, 0, -2, -4, -6].

RANGE(2, -2, 5)
3.

This example generates an array with the values from 0 to 255. If applied to an 8-bit image as a lookup table (LUT), the image remains unchanged.

RANGE(0, 1, 256)
4.

This example generates an array with the values from 0 to 255. If applied to an 8-bit image as a lookup table (LUT), the image's intensity values are inverted.

RANGE(255, -1, 256)