code: def mmGetPlotConnectionsPerColumn(self, title=None):
      
      plot = Plot(self, title)
      plot.addGraph(sorted(self._connectedCounts.tolist(), reverse=True),
                    position=211,
                    xlabel="column", ylabel="# connections")
      plot.addHistogram(self._connectedCounts.tolist(),
                        position=212,
                        bins=len(self._connectedCounts) / 10,
                        xlabel="# connections", ylabel="# columns")
      return plot
docs: Returns plot of # connections per column.
  
      @return (Plot) plot