擅长:python、mysql、java
<p>x轴将是数据帧的索引,因此需要确保日期以日期对象表示,并且日期列是索引:</p>
<pre><code>import datetime
import pandas as pd
# Init data
df = pd.DataFrame()
df['indx']= [20141015, 20141016, 20141017, 20141020, 20141021, 20141022, 20141023]
df['ATR_14']= [0.01737336, 0.017723579, 0.020027102, 0.024023488, 0.02415369, 0.026266531, 0.026764327]
df['RSI_14']= [99.48281325, 99.48281325, 99.53091876, 99.67180924, 99.72027954, 99.76100661, 85.41188977]
# change type of 'indx' column to date
df['indx'] = df['indx'].apply(lambda x: datetime.datetime.strptime(str(x), "%Y%m%d").date())
# Set 'indx' column as actual index; select a column and display it as bars
df.set_index('indx')['ATR_14'].plot.bar(title ="V comp",figsize=(7,4),legend=True, fontsize=12)
plt.show()
</code></pre>
<p>结果:</p>
<p><a href="https://i.stack.imgur.com/12ee2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/12ee2.png" alt="Pandas bar plot"/></a></p>
<p>我希望你能从这一点开始管理整个子流程。在</p>