matplotlib - pandas - No xlabel and xticks for twinx axes in subploted figures

Question

I had a similar question, which was answered previously. However, it differs in usage of Pandas package with it.

Here is my previous question: matplotlib - No xlabel and xticks for twinx axes in subploted figures

So, my question like last one is that why it does not show xlabel and xticks for first row diagrams when using this Python code.

Two notes:

1. I also used subplots instead of gridspec but same result.
2. If you uncomment any of the commented lines in this code, which is related to using the Pandas on the axes in each diagram, the xlabel and xticks will disappear!

---

import matplotlib.pyplot as plt
import matplotlib.gridspec as gspec
import numpy as np
import pandas as pd
from math import sqrt

fig = plt.figure() 
gs = gspec.GridSpec(2, 2)
gs.update(hspace=0.7, wspace=0.7)
ax1 = plt.subplot(gs[0, 0])
ax2 = plt.subplot(gs[0, 1])
ax3 = plt.subplot(gs[1, 0])
ax4 = plt.subplot(gs[1, 1])


x1 = np.linspace(1,10,10)


ax12 = ax1.twinx()
ax1.set_xlabel("Fig1")
ax12.set_xlabel("Fig1")
ax1.set_ylabel("Y1")
ax12.set_ylabel("Y2")
# pd.Series(range(10)).plot(ax=ax1)
ax12.plot(x1, x1**3)




ax22 = ax2.twinx()
ax2.set_xlabel("Fig2")
ax22.set_xlabel("Fig2")
ax2.set_ylabel("Y3")
ax22.set_ylabel("Y4")
# pd.Series(range(10)).plot(ax=ax2)
ax22.plot(x1, x1**0.5)


ax32 = ax3.twinx()
ax3.set_xlabel("Fig3")
ax32.set_xlabel("Fig3")
ax3.set_ylabel("Y5")
ax32.set_ylabel("Y6")
# pd.Series(range(200)).plot(ax=ax3)



ax42 = ax4.twinx()
ax4.set_xlabel("Fig4")
ax42.set_xlabel("Fig4")
ax4.set_ylabel("Y7")
ax42.set_ylabel("Y8")
# pd.Series(range(10)).plot(ax=ax42)



plt.subplots_adjust(wspace=0.8, hspace=0.8)
plt.show()

Answer 1

I just got the same issue because I was mixing plots made with matplotlib and made with Pandas.

You should not plot with Pandas, here is how you could replace:

pd.Series(range(10)).plot(ax=ax42)

with

ax42.plot(pd.Series(range(10))