matplotlib画堆叠条形图

import matplotlib.pyplot as plt
%matplotlib inline
plt.style.use('ggplot')

plt.style.use("ggplot") #设置图片风格为ggplot
  plt.rcParams['figure.dpi'] = 100 #分辨率

#看看各性别的获救情况
fig = plt.figure()
fig.set(alpha=0.2) # 设定图表颜色alpha参数Survived_m = data_train.Survived[data_train.Sex == 'male'].value_counts()
Survived_f = data_train.Survived[data_train.Sex == 'female'].value_counts()
df=pd.DataFrame({u'男性':Survived_m, u'女性':Survived_f})
df.plot(kind='bar', stacked=True)
plt.title(u"按性别看获救情况")
plt.xlabel(u"性别")
plt.ylabel(u"人数")
plt.show()