NAME: spd_ui_data_minmax PURPOSE: Returns a two-element array containing the mininum and maximum values contained in the loadedData quantity specified by the NAME positional parameter. CALLING SEQUENCE: minmax = spd_ui_data_minmax(loadedData, options) INPUT: loadedData: The loadedData object. name: The name of the variable (a string). KEYWORDS: none OUTPUT: [minRange, maxRange]: A two-element array containing the mininum and maximum values of the quantity specified by the NAME parameter.