getting unique values and counting amounts

[Larz60+]

NLTK is great, but can be a bit tricky at first. I use the O'reilly book'Natural Language Processing with Python' as a guide, but I'm sure there are better examples on the web now as I purchased the book back in 2013, and it was published 2009. If you wish, I'll take a look and see what's available now, and if someone else is reading this post, and knows where to look, that would also help.

found this snippet:

import nltk
from nltk.util import ngrams

def word_grams(words, min=1, max=4):
    s = []
    for n in range(min, max):
        for ngram in ngrams(words, n):
            s.append(' '.join(str(i) for i in ngram))
    return s

print word_grams('one two three four'.split(' '))