demo_semiotic.py

import scattertext as st

movie_df = st.SampleCorpora.RottenTomatoes.get_data()
# movie_df.category = movie_df.category.apply \
# (lambda x: {'rotten': 'Negative', 'fresh': 'Positive', 'plot': 'Plot'}[x])
corpus = st.CorpusFromPandas(
    movie_df,
    category_col='category',
    text_col='text',
    nlp=st.whitespace_nlp_with_sentences
).build().compact(st.AssociationCompactor(1000))
corpus = corpus.get_unigram_corpus()

semiotic_square = st.SemioticSquare(
    corpus,
    category_a='fresh',
    category_b='rotten',
    neutral_categories=['plot'],
    scorer=st.RankDifference(),
    labels={'not_a_and_not_b': 'Plot Descriptions',
            'a_and_b': 'Reviews',
            'a_and_not_b': 'Positive',
            'b_and_not_a': 'Negative',
            'a': '',
            'b': '',
            'not_a': '',
            'not_b': ''}
)

html = st.produce_semiotic_square_explorer(
    semiotic_square,
    category_name='fresh',
    not_category_name='rotten',
    x_label='Fresh-Rotten',
    y_label='Plot-Review',
    num_terms_semiotic_square=20,
    neutral_category_name='Plot Description',
    metadata=movie_df['movie_name'],
)

fn = 'demo_semiotic.html'
open(fn, 'wb').write(html.encode('utf-8'))
print('Open ' + fn + ' in Chrome or Firefox.')