Pandas DataFrame 步骤图: where="post" [英] Pandas DataFrame step plot: where="post"

问题描述

我想知道如何将 matplotlibs

I am wondering how I can pass matplotlibs where="post" into a pandas plot.

import numpy as np
import pandas as pd

df = pd.DataFrame(np.random.randn(36, 3))
df.plot(drawstyle="steps", linewidth=2)

# this doesn't work
df.plot(drawstyle="steps", where='post')

Does anyone know how to realize this?

Thanks in advance!

解决方案

You just need to specify drawstyle="steps-post":

df = pd.DataFrame(np.random.randn(36, 3))
df.plot(drawstyle="steps", linewidth=2)
df.plot(drawstyle="steps-post", linewidth=2)

Compare the result:

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