code: def empty_bar_plot(ax):
      ''' Delete all axis ticks and labels '''
      plt.sca(ax)
      plt.setp(plt.gca(),xticks=[],xticklabels=[]) 
      return af empty_bar_plot(ax):
      ''' Delete all axis ticks and labels '''
      plt.sca(ax)
      plt.setp(plt.gca(),xticks=[],xticklabels=[]) 
      return ax
docs: Delete all axis ticks and labels