python [数据框添加或删除列]一些表达式来修改数据框列#Pandas

Posted 2021-05-09

import pandas as pd

df = pd.read_csv("")
df.drop([column name], axis=1, inplace=True) # drop col
df[column name] = pd.Series(np.zeros(df.shape[0]), dtype=int, index=df.index) # add all 0 col