Ranker defaults to a ranking order given the same values #320
Description
The Ranker transformer appears to default to assigning different ranks when the values of the specified ranking field are the same.
For instance, when Ranker is applied as follows on a corpus of Tweets:
ranker = Ranker(
obj_type = "utterance",
score_func = lambda utt: utt.meta["overall_engagement"],
score_attribute_name = "overall_engagement",
rank_attribute_name = "rank_within_conversation"
)
A ranking order is imposed by default when there is no inherent order based on the specified field:
