def __init__(self,
	             term_freq_df,
	             unigram_frequency_path=None):
		'''
		Parameters
		----------
		term_freq_df: DataFrame
			Indexed on term, columns are counts per category
		unigram_frequency_path: str (see TermDocMatrix)
		'''
		self.term_freq_df = term_freq_df
		self.unigram_frequency_path = unigram_frequency_path

		Parameters
		----------
		term_freq_df: DataFrame
			Indexed on term, columns are counts per category
		unigram_frequency_path: str (see TermDocMatrix)
		
scattertext/TermDocMatrixFromFrequencies.py