擅长:python、mysql、java
<p>我建议使用普通的线图。您可以通过<code>ax.twinx()</code>获得双轴。</p>
<pre><code>import pandas as pd
import matplotlib.pyplot as plt
df = pd.DataFrame({"date": ["2018-01-01", "2018-01-02", "2018-01-03", "2018-01-04"],
"column1": [555,525,532,585],
"column2": [50,48,49,51]})
ax = df.plot(x="date", y="column1", legend=False)
ax2 = ax.twinx()
df.plot(x="date", y="column2", ax=ax2, legend=False, color="r")
ax.figure.legend()
plt.show()
</code></pre>
<p><a href="https://i.stack.imgur.com/r2nak.png" rel="noreferrer"><img src="https://i.stack.imgur.com/r2nak.png" alt="enter image description here"/></a></p>