This page is my "blog".
It's just a place to leave some thoughts and things that are going on. Some will be about software, some about humans and some about both. I'll try not to post about the brand of my new toothbrush unless it's really important :-)
23 Aug 2012
Pythons collections framework has some nice classes that can be very helpful. I just used the formidable Counter class to check if I got a probability distribution conversion right.
I wanted to generate a random integer in the range of 4 to 8, given an existing value from a uniform distribution between 0 and 1. I came up with a simple way of doing that, but wanted to do a quick test if it actually does what I thought it would do. So I used the Counter class to do a quick test:
>>> from collections import Counter
>>> c = Counter
>>> l = []
>>> for _ in range(1000000):
l.append(int(round(\
random.uniform(0,1)*5 + 3.5)))
>>> c.update(l)
>>> c
Counter({8: 200134, 4: 200130, 5: 199970, 7: 199970, 6: 199796})
>>> c = Counter
>>> l = []
>>> for _ in range(1000000):
l.append(int(round(\
random.uniform(0,1)*5 + 3.5)))
>>> c.update(l)
>>> c
Counter({8: 200134, 4: 200130, 5: 199970, 7: 199970, 6: 199796})
Looks like it does the job :)
#
lastedited 23 Aug 2012
You are seeing a selection of all entries on this page. See all there are.