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Performs a lookup on a range-based lookup table and stores the resulting value, or writes the value to, a new output attribute. This transformer lets you use an input attribute to classify features by numeric ranges.

Input Ports

Output Ports


Note: The ranges you create are inclusive and the order in which they appear on the table matters. The ranges are tested starting with the first one in the list and progressing to the last range listed. For example, suppose one range is from 10 to 20 and the next range is from 20 to 30. The number 20 can belong to both ranges because each range is inclusive, but the number will only be matched to the first range.

How to Quickly Generate Range Table Values

When you know the total number of values in a range, and you know how many groupings you want, this is a quick way to generate the range table values. Click Generate button in the Parameters dialog.

Editing Transformer Parameters

Using a set of menu options, transformer parameters can be assigned by referencing other elements in the workspace. More advanced functions, such as an advanced editor and an arithmetic editor, are also available in some transformers. To access a menu of these options, click beside the applicable parameter. For more information, see Transformer Parameter Menu Options.

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Tags Keywords: LUT lookup look-up RangeMapper