Your first TfIdf

In this exercise, you will apply the TfIdf method to the small annak dataset, containing the first sentence of Anna Karenina by Leo Tolstoy.

Your task will be to work with this dataset and apply the TfidfVectorizer() function. Recall that performing a numeric transformation of text is your first step in being able to understand the sentiment of the text. The Tfidf vectorizer is another way to construct a vocabulary from our sentiment column.

Latihan ini adalah bagian dari kursus

Sentiment Analysis in Python

Lihat Kursus

Petunjuk latihan

Import the function for building a TfIdf vectorizer from sklearn.feature_extraction.text.
Call the TfidfVectorizer() function and fit it on the annak dataset .
Transform the vectorizer.

Latihan interaktif praktis

Cobalah latihan ini dengan menyelesaikan kode contoh berikut.

# Import the required function
____

annak = ['Happy families are all alike;', 'every unhappy family is unhappy in its own way']

# Call the vectorizer and fit it
anna_vect = ____.___(annak)

# Create the tfidf representation
anna_tfidf = anna_vect.____(annak)

# Print the result 
print(anna_tfidf.toarray())

Edit dan Jalankan Kode