def METHOD_NAME(self):
    r = 0.01
    if self._total_seqs > 0:
        r = ((1.0 * self._seq_counters[SequenceLikelihood.POSITIVE]) /
             self._total_seqs / self._model.typical_positive_ratio)
        r = r * self._freq_char / self._total_char
        if r >= 1.0:
            r = 0.99
    return r