根据一列生成其他列
代碼如下:
import numpy as np import pandas as pddata = {'city': ['Beijing', 'Shanghai', 'Guangzhou', 'Shenzhen', 'Hangzhou', 'Chongqing'],'year': [2016,2016,2015,2017,2016, 2016],'population': [2100, 2300, 1000, 700, 500, 500]} frame = pd.DataFrame(data, columns = ['year', 'city', 'population', 'debt'])print(frame, '\n') frame['panduan'] = frame.city.apply(lambda x: 1 if 'ing' in x else 0)print(frame)?
總結(jié)
- 上一篇: 数据嫁接
- 下一篇: dataframe筛选某列的单元格等于某