vector_space_model/Int/VSM-master/vsm.py
def inverse_document_frequency(term):
    """Returns the inverse document frequency of term.  Note that if
    term isn't in the dictionary then it returns 0, by convention."""
    if term in dictionary:
        return math.log(N/document_frequency[term],2)
    else:
        return 0.0
Returns the inverse document frequency of term.  Note that if
    term isn't in the dictionary then it returns 0, by convention.
Returns the inverse document frequency of term.  Note that if
term isn't in the dictionary then it returns 0, by convention.
Returns the inverse document frequency of term . Note that if term isn ' t in the dictionary then it returns 0 by convention .
def inverse_document_frequency(term):
    if term in dictionary:
        return math.log(N/document_frequency[term],2)
    else:
        return 0.0
def inverse_document_frequency ( term ) : if term in dictionary : return math . log ( N / document_frequency [ term ] , 2 ) else : return 0.0
Returns the inverse document frequency of term.
Returns the inverse document frequency of term .
"""Returns the inverse document frequency of term.  Note that if
    term isn't in the dictionary then it returns 0, by convention."""
term