bo-graduation/venv/lib/python3.7/site-packages/nltk/lm/util.py

# Natural Language Toolkit
#
# Copyright (C) 2001-2020 NLTK Project
# Author: Ilia Kurenkov <ilia.kurenkov@gmail.com>
# URL: <http://nltk.org/>
# For license information, see LICENSE.TXT
"""Language Model Utilities"""

from math import log

NEG_INF = float("-inf")
POS_INF = float("inf")


def log_base2(score):
    """Convenience function for computing logarithms with base 2."""
    if score == 0.0:
        return NEG_INF
    return log(score, 2)
readme check 5 years ago			`# Natural Language Toolkit`
			`#`
add tag_comparison_v3.py 5 years ago			`# Copyright (C) 2001-2020 NLTK Project`
readme check 5 years ago			`# Author: Ilia Kurenkov <ilia.kurenkov@gmail.com>`
			`# URL: <http://nltk.org/>`
			`# For license information, see LICENSE.TXT`
			`"""Language Model Utilities"""`

			`from math import log`

			`NEG_INF = float("-inf")`
			`POS_INF = float("inf")`


			`def log_base2(score):`
			`"""Convenience function for computing logarithms with base 2."""`
			`if score == 0.0:`
			`return NEG_INF`
			`return log(score, 2)`