Update app.py

app.py

@@ -28,6 +28,10 @@ tiktok = topic.text.to_list()
 
 vectorizer_model = CountVectorizer(stop_words="english")
 topic_model = BERTopic(verbose=True,vectorizer_model=vectorizer_model)
+topics, probs = topic_model.fit_transform(tiktok)
+
+topics_over_times = topic_model.topics_over_time(tiktok, topics, timestamps, nr_bins=20)
+topic_model.visualize_topics_over_time(topics_over_times, top_n_topics=30)
 #topics, probs = topic_model.fit_transform(tiktok)
 
 placeholder = st.empty()