In field calculator i calculate sequential values in field [ORDER_ID] What need change in script to calculate sequential values based on group field [GROUP_ID]. I select values manually and use autoincrement () in Field Calculator.
Parser: Python Expression: autoIncrement() Pre-Logic Script Code:
rec=0 def autoIncrement(): global rec pStart = 1 pInterval = 1 if (rec == 0): rec = pStart else: rec = rec + pInterval return rec
What changes script needed to use it in field calculator?