I have an recarray -- the first column is date. I have the following function to compute the number of unique dates in my data set:
def byName(): return(len(list(set(d['Date'])) )) Question: is the string 'Date' looked up at each iteration? If so, this is dumb, but explains my horrible performance. Or, is there a better way to code the above? Can I convert this to something indexed by column number and convert 'Date' to column number "0" upfront? Would this help with speed? W _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
