def test_pos_booleans():
"""Test POS boolean methods."""
assert utils.is_adjective("ADJ")
assert utils.is_adverb("ADV")
assert utils.is_noun("NOUN")
assert utils.is_noun("PROPN")
assert utils.is_pronoun("PRON")
assert utils.is_verb("VERB")
assert utils.is_word("NOUN")
def pronoun_noun_ratio(doc):
"""Compute Pronoun Noun ratio.
This is an approximation of text complexity/readability, since pronouns
are co-references to a proper noun or a noun. This is computed as the
taking the ratio between third person pronouns and total nouns.
:param doc: Text to be processed
:type doc: Spacy doc
:return: pronoun-noun ratio
:rtype: float
"""
noun_counter = 0
third_person_pronouns = 0
for token in doc:
if is_noun(token.pos_):
noun_counter += 1
if is_pronoun(token.pos_) and THIRD_PERSON_LABEL in token.tag_:
third_person_pronouns += 1
return float(third_person_pronouns) / noun_counter