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In ArcMap, here is how you can calculate sequential numbers using Field Calculator. Set field calculate to python. Paste this in pre logic script: rec=0 def autoIncrement():  global rec  pStart = 1   pInterval = 1  if (rec == 0):    rec = pStart   else:    rec += pInterval   return rec Paste this in second box autoIncrement() Check out one of my other posts about how to Convert from Degrees Minutes Seconds to Decimal Degrees in Python here . Happy GISing! Lindsy Hales Bentley

Here’s a little function to pull numbers out of a string. import re def calculate(value):   newVal = re.sub("[^0-9]", "", value)   if newVal == "":     return 0   elif newVal is None:     return 0   else:     return newVal calculate( !Size! ) Happy GISing! Lindsy Hales Bentley