情节pandas dataframe两列

我认为最简单的是按子集选择列然后DataFrame.plot:

df[['ISP.MI','Ctrv']].plot()

如果你不关心轴刻度:

plt.figure()

x = df['Date']
y1 = df['ISP.MI']
y2 = df['Ctrv']

plt.plot(x,y1)
plt.plot(x,y2)

如果你关心它:

fig, ax1 = plt.subplots()

x = df['Date']
y1 = df['ISP.MI']
y2 = df['Ctrv']

ax2 = ax1.twinx()

ax1.plot(x, y1, 'g-')
ax2.plot(x, y2, 'b-')