Text vectorization

Let's transform the desc column in the UFO dataset into tf/idf vectors, since there's likely something we can learn from this field.

100 XP

Print out the head() of the ufo["desc"] column.
Set vec equal to the TfidfVectorizer() object.
Use vec's fit_transform() method on the ufo["desc"] column.
Print out the shape of the desc_tfidf vector, to take a look at the number of columns this created. The output is in the shape (rows, columns).