Python - Is a dictionary slow to find frequency of each character?
Posted
by psihodelia
on Stack Overflow
See other posts from Stack Overflow
or by psihodelia
Published on 2010-03-26T09:31:23Z
Indexed on
2010/03/26
9:33 UTC
Read the original article
Hit count: 199
I am trying to find a frequency of each symbol in any given text using an algorithm of O(n) complexity. My algorithm looks like:
s = len(text)
P = 1.0/s
freqs = {}
for char in text:
try:
freqs[char]+=P
except:
freqs[char]=P
but I doubt that this dictionary-method is fast enough, because it depends on the underlying implementation of the dictionary methods. Is this the fastest method?
© Stack Overflow or respective owner
