plot the 50 least frequent words with nltk

Question

How do I plot the 50 least frequent words?

Maybe I am thinking too complicated. Here's the way I get the words:

distr = nltk.FreqDist(word for word in items)
words = distr .keys()
seldomwords = words [:50]

How do I plot this now?

With the plot function of FreqDist I get all or only the x most frequent words.

I tried something like:

distr .plot(:50)

But that's syntactically incorrect.

Take a look at http://stackoverflow.com/questions/37427673/sorting-freqdist-in-nltk-with-get-vs-get/37429443#37429443 — alvas, May 26 '16 at 16:49

alvas · Accepted Answer · 2016-05-26T17:14:08.593

It's sort of strange but the simplest way is to

first you have to extract the least common items from the FreqDist
then recreate the least common items and feed it back into a new FreqDist object
use FreqDist.plot() using the new FreqDist.

[Code]:

>>> from nltk import FreqDist
>>> fd = FreqDist(list('aaabbbbbcccccdddddddd'))
>>> last_two = FreqDist(dict(fd.most_common()[-2:]))
>>> last_two.plot()

[out]:

[Code]:

>>> from nltk import FreqDist
>>> fd = FreqDist(list('aaabbbbbcccccdddddddd'))
>>> last_two = FreqDist(dict(fd.most_common()[-2:]))
>>> last_two.plot()
>>> last_three = FreqDist(dict(fd.most_common()[-3:]))
>>> last_three.plot()

[out]:

That's what I was looking for. Thanks! – NotSmartButLucky May 27 '16 at 11:17 — NotSmartButLucky, May 27 '16 at 11:17

plot the 50 least frequent words with nltk

1 Answers1