code: def plot_samples(self,prop,fig=None,label=True,
                       histtype='step',bins=50,lw=3,
                       **kwargs):
          
          setfig(fig)
          samples,stats = self.prop_samples(prop)
          fig = plt.hist(samples,bins=bins,normed=True,
                   histtype=histtype,lw=lw,**kwargs)
          plt.xlabel(prop)
          plt.ylabel('Normalized count')
          
          if label:
              med,lo,hi = stats
              plt.annotate('$%.2f^{+%.2f}_{-%.2f}$' % (med,hi,lo),
                           xy=(0.7,0.8),xycoords='axes fraction',fontsize=20)
  
          return fig
docs: Plots histogram of samples of desired property.
  
          :param prop:
              Desired property (must be legit column of samples)
              
          :param fig:
                Argument for :func:`plotutils.setfig` (``None`` or int).
  
          :param histtype, bins, lw:
               Passed to :func:`plt.hist`.
  
          :param **kwargs:
              Additional keyword arguments passed to `plt.hist`
  
          :return:
              Figure object.