code: def columnwise_summary(sf):
      """
      Plots a columnwise summary of the sframe provided as input,
      and returns the resulting Plot object.
  
      The function supports SFrames.
  
      Parameters
      ----------
      sf : SFrame
        The data to get a columnwise summary for.
  
      Returns
      -------
      out : Plot
        A :class: Plot object that is the columnwise summary plot.
  
      Examples
      --------
      Make a columnwise summary of an SFrame.
  
      >>> x = turicreate.SArray([1,2,3,4,5])
      >>> s = turicreate.SArray(['a','b','c','a','a'])
      >>> sf_test = turicreate.SFrame([x,x,x,x,s,s,s,x,s,x,s,s,s,x,x])
      >>> colsum = turicreate.visualization.columnwise_summary(sf_test)
      """
      if not isinstance(sf, tc.data_structures.sframe.SFrame):
          raise ValueError(
              "turicreate.visualization.columnwise_summary "
              + "supports SFrame"
          )
      plt_ref = tc.extensions.plot_columnwise_summary(sf)
      return Plot(_proxy=plt_ref)
  
file_path: turicreate/src/python/turicreate/visualization/show.py
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  from ._plot import Plot, LABEL_DEFAULT
  import turicreate
label_desc: Use image node_id 8 for calling a global function with example usage: columnwise_summary(sf) and returns: Plot