hi, Seems my post added much confusion. Sorry... I was hoping not to have to post my code since it is really wrong and slightly embarrassing.. what i am trying to do is map an input range of values to output range. I was hoping to make it a bit of an all purpose utility that would map pretty much any input range to an output range, also do inverted mapping... and also handle negative numbers and perhaps even a flag for exponential mapping.
import random def scaleX(in_seq, low, hi): range1 = max(in_seq) - min(in_seq) #range2 = max(out_seq) - min(outseq) range2 = hi - low ratio = range1/range2 return [(x * ratio) for x in in_seq] def test(): # Create a list of 15 random integers in the range 0 to 127 # see if we can map it to 0 -> 1 inseq = random.sample(xrange(128), 25) print print scaleX(inseq, 0.0, 1.0) print if __name__ == "__main__": test() _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor