code: def _distance_from_upper_left(cat_pctls, not_cat_pctls):
      return np.linalg.norm(
          np.array([1, 0])
          - np.array(list(zip(cat_pctls, not_cat_pctls))),
          axis=1,
      )
  
file_path: scattertext/scattertext/termscoring/CornerScore.py
imports: import numpy
  from scipy.stats import rankdata
label_desc: Use image node_id 4 for calling the CornerScore obj's underlying member method code with example usage: obj._distance_from_upper_left(cat_pctls, not_cat_pctls) and returns: np