"hawkesed" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Hi, > I am semi new to Python. Here is my problem : I have a list of 100 > random integers. I want to be able to construct a histogram out of the > data. So I want to know how many 70's, 71's, etc. I can't figure out > how to do this. A dictionary is supposedly can do key value pairs > right? I want to be able to see if say 75 is in the data structure, and > what its value is, then increment its value as I go through the list > finding items. > I am sure there is a way to do this. Is a dictionary what I should be > using? Thanks for any help. Hope this makes sense, its getting very > late here.
The goal of making a histogram implies that there more numbers in rlist than possible values in range[min(rlist), max(rlist)+1]. I would use a list. freq = [0]*(rmax-rmin+1) for i in randomlist: freq[rmin+i] += 1 You can then further combine bins as needed for a histogram. If your distribution is sparse instead of compact, a dict would be better, but 'random integer [in a range]' usually implies compactness. Terry J. Reedy -- http://mail.python.org/mailman/listinfo/python-list
