class_docstr: Vertical Pyramid graph class
class_docstr_tok: ["Vertical","Pyramid","graph","class"]
docstr: Separate values between odd and even series stacked
docstr_tok: ["Separate","values","between","odd","and","even","series","stacked"]
code: def _get_separated_values(self, secondary=False):
      """Separate values between odd and even series stacked"""
      series = self.secondary_series if secondary else self.series
      positive_vals = map(
          sum,
          zip(
              *[
                  serie.safe_values
                  for index, serie in enumerate(series)
                  if index % 2
              ]
          ),
      )
      negative_vals = map(
          sum,
          zip(
              *[
                  serie.safe_values
                  for index, serie in enumerate(series)
                  if not index % 2
              ]
          ),
      )
      return list(positive_vals), list(negative_vals)
  
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 2 for calling the VerticalPyramid obj's underlying member method code with example usage: obj._get_separated_values(secondary) and returns: list,  list