docstr: Parameters
  ----------
  pd.Series
  term -> frequency
  Returns
  -------
  PriorFactory
docstr_tok: ["Parameters","--","--","--","--","--","pd.Series","term","-",">","frequency","Returns","--","--","--","-","PriorFactory"]
code: def use_custom_term_frequencies(self, custom_term_frequencies):
      """
      Parameters
      ----------
      pd.Series
      term -> frequency
      Returns
      -------
      PriorFactory
      """
      self.priors += custom_term_frequencies.reindex(
          self.priors.index
      ).fillna(0)
      return self
  
imports: import pandas
  import numpy
  from scattertext.termranking import AbsoluteFrequencyRanker
  from scattertext.termsignificance.LogOddsRatioInformativeDirichletPiror import LogOddsRatioInformativeDirichletPrior
label_desc: Use image node_id 5 for calling the PriorFactory obj's underlying member method code with example usage: obj.use_custom_term_frequencies(custom_term_frequencies) and returns: self