Define parameters for formula data references

When equations require attribute values, add those attributes as parameters in the Formula Configuration window.

1. Click next to the Parameters field.

   Note: You can alternatively click in an empty row and enter a variable (a -z).

2. In the Parameter Configuration window, select a variable from the Variable menu.

   The number of variables available is limited to 26 chars (from A to Z).

3. Select the attribute that the variable represents.

   • Choose the attribute from the Attribute menu. All sibling attributes with supported value types are listed.

   • If the attribute that you want is not in the menu, choose Other. A new field called Attribute appears in the window. Click to pick your attribute from the tree. Alternatively, type in the path to the attribute of interest. Examples of some attribute paths are listed.

4. Select the desired unit of measure for the attribute. Note that this is not the UOM of the attribute but rather the UOM that your formula requires from this input, as described in Units of measure in formula data references.

   For example, if your input attribute has a UOM of Celsius but your equation requires Fahrenheit, you would select Fahrenheit in this field.