class_docstr: Vertical Pyramid graph class
class_docstr_tok: ["Vertical","Pyramid","graph","class"]
docstr: Compute secondary y min and max
docstr_tok: ["Compute","secondary","y","min","and","max"]
code: def _pre_compute_secondary(self, positive_vals, negative_vals):
      """Compute secondary y min and max"""
      self._secondary_max = max(max(positive_vals), max(negative_vals))
      self._secondary_min = -self._secondary_max
  
file_path: pygal/pygal/graph/pyramid.py
imports: from pygal.adapters import positive
  from pygal.graph.horizontal import HorizontalGraph
  from pygal.graph.stackedbar import StackedBar
label_desc: Use image node_id 4 for calling the VerticalPyramid obj's underlying member method code with example usage: obj._pre_compute_secondary(positive_vals, negative_vals) without return types