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Series.rank(method='average', na_option='keep', ascending=True, pct=False)

Compute data ranks (1 through n). Equal values are assigned a rank that is the average of the ranks of those values


method : {‘average’, ‘min’, ‘max’, ‘first’, ‘dense’}

  • average: average rank of group
  • min: lowest rank in group
  • max: highest rank in group
  • first: ranks assigned in order they appear in the array
  • dense: like ‘min’, but rank always increases by 1 between groups

na_option : {‘keep’}

keep: leave NA values where they are

ascending : boolean, default True

False for ranks by high (1) to low (N)

pct : boolean, default False

Computes percentage rank of data


ranks : Series