解决方法
该方法与
the other SO answer基本相同;将每行除以行的总和：
df = df.divide(df.sum(axis=1),axis=0)
然后你可以照常调用df.plot(kind =’area’,stacked = True,…).
import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
np.random.seed(2015)
y = np.random.randint(5,50,(10,3))
x = np.arange(10)
df = pd.DataFrame(y,index=x)
df = df.divide(df.sum(axis=1),axis=0)
ax = df.plot(kind='area',stacked=True,title='100 % stacked area chart')
ax.set_ylabel('Percent (%)')
ax.margins(0,0) # Set margins to avoid "whitespace"
plt.show()
产量