[01. Bar Chart] 003. Stacked Bar Chart

누적된 막대그래프는 각 항목의 수량을 구성하는 세부 수량을 표시하는 데 용이하다. 세부적인 항목과 전체적인 수량 비교가 가능하다.

 

import matplotlib.pyplot as plt
import matplotlib.patches as mpatches
import seaborn as sns

if __name__ == '__main__':
    sns.set_style(style="whitegrid")
    tips = sns.load_dataset("tips")
    print(tips.head())
    bar1 = sns.barplot(x="day", y="total_bill", data=tips, estimator=sum, ci=None, color='darkblue')
    smoker = tips[tips['smoker'] == 'Yes']
    print(smoker.head())
    bar2 = sns.barplot(x="day", y="total_bill", data=smoker, estimator=sum, ci=None, color='lightblue')
    top_bar = mpatches.Patch(color='darkblue', label='smoker = No')
    bottom_bar = mpatches.Patch(color='lightblue', label='smoker = Yes')
    plt.legend(handles=[top_bar, bottom_bar])
    plt.show()


결과 값
   total_bill   tip     sex smoker  day    time  size
0       16.99  1.01  Female     No  Sun  Dinner     2
1       10.34  1.66    Male     No  Sun  Dinner     3
2       21.01  3.50    Male     No  Sun  Dinner     3
3       23.68  3.31    Male     No  Sun  Dinner     2
4       24.59  3.61  Female     No  Sun  Dinner     4
   total_bill   tip   sex smoker  day    time  size
56       38.01  3.00  Male    Yes  Sat  Dinner     4
58       11.24  1.76  Male    Yes  Sat  Dinner     2
60       20.29  3.21  Male    Yes  Sat  Dinner     2
61       13.81  2.00  Male    Yes  Sat  Dinner     2
62       11.02  1.98  Male    Yes  Sat  Dinner     2