topic modeling tutorial not showing notebook beyond output of Ln {22}

[gitter587]

Topic Modelling with scikit-learn
Let us now use NMF and LDA which is available in sklearn to see how these topics work.

In [20]:
import sklearn
from sklearn.feature_extraction.text import TfidfVectorizer, CountVectorizer
from sklearn.datasets import fetch_20newsgroups
from sklearn.decomposition import NMF, LatentDirichletAllocation
In [21]:
dataset = fetch_20newsgroups(shuffle=True, random_state=1, remove=('headers', 'footers', 'quotes'))
documents = dataset.data
In [22]:
documents
Out[22]:
[u"Well i'm not sure about the story nad it did seem biased. What\nI disagr