python - how to plot two barh in one axis? -

these pandas series more 500 items,i pick top 10 , bottom 10 plot in 1 matplotlib axis,here picture draw manually:

data here:

bottom10 out[12]:  0   -9.823127e+08 1   -8.069270e+08 2   -6.030317e+08 3   -5.709379e+08 4   -5.224355e+08 5   -4.755464e+08 6   -4.095561e+08 7   -3.989287e+08 8   -3.885740e+08 9   -3.691114e+08 name: amount, dtype: float64  top10 out[13]:  0    9.360520e+08 1    9.078776e+08 2    6.603838e+08 3    4.967611e+08 4    4.409362e+08 5    3.914972e+08 6    3.547471e+08 7    3.538894e+08 8    3.368558e+08 9    3.189895e+08 name: amount, dtype: float64    top10.barh(top10.index,top10.amount,color='red',align='edge') bottom10.barh(bottom10.index,bottom10.amount,color='green',align='edge') 

now shows this, not want: .

what right way plot?

you can creating twiny axes, , plotting bottom10 dataframe on there.

for example:

import matplotlib.pyplot plt import pandas pd import numpy np  # random data bottom10 = pd.dataframe({'amount':-np.sort(np.random.rand(10))}) top10 = pd.dataframe({'amount':np.sort(np.random.rand(10))[::-1]})  # create figure , axes top10 fig,axt = plt.subplots(1)  # plot top10 on axt top10.plot.barh(color='red',edgecolor='k',align='edge',ax=axt,legend=false)  # create twin axes axb = axt.twiny()  # plot bottom10 on axb bottom10.plot.barh(color='green',edgecolor='k',align='edge',ax=axb,legend=false)  # set sensible axes limits axt.set_xlim(0,1.5) axb.set_xlim(-1.5,0)  # add axes labels axt.set_ylabel('best items') axb.set_ylabel('worst items')  # need manually move axb label right hand side axb.yaxis.set_label_position('right')  plt.show()