使用Pandas、plt分析绘制年自杀人数直方图

1985-2016自杀情况.zip

  1. import pandas as pd
  2. from matplotlib import pyplot as plt
  4. pd.set_option('display.max_colwidth',1000)
  5. file_path = '/home/dwh/Downloads/master.csv'
  6. d1 = pd.read_csv(file_path)
  7. all_country = list(set(d1['country'].tolist()))
  8. all_years = list(set(d1['year'].tolist()))
  10. year_num_data = {'years':[], 'die_nums':[]}
  11. for one_year in all_years:
  12.     die_num = len(list(d1['year'][d1['year'] == one_year].tolist()))
  13.     year_num_data['years'].append(one_year)
  14.     year_num_data['die_nums'].append(die_num)
  17. year_num_data_frame = pd.DataFrame(year_num_data)
  18. print(year_num_data_frame)
  20. years_list = list(year_num_data_frame['years'].values)
  21. die_num_list = list(year_num_data_frame['die_nums'].values)
  23. plt.figure(figsize=(20,8),dpi=80)
  24. # plt.plot(years_list, die_num_list)  # 绘制点
  25. plt.bar(years_list, die_num_list,width=0.4,color='orange')
  26. plt.xticks(years_list)  # 设置x坐标轴
  27. plt.yticks(range(0, max(die_num_list)+1,100))  # 设置y坐标轴
  28. plt.show()

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