创建一个5行5列的dataframe:
df = pd.DataFrame(np.random.randn(5,5),columns=["A","B","C","D","E"],index=["a","b","c","d","e"])
df
增加列明为“F"的一列,F列中数据为[1,2,3,4,5]:
df[‘F’]=[1,2,3,4,5]
删除第D列:
df.drop([‘C’],axis=1,inplace=True)
注意,axis默认是0.
然后删除第c行:
df.drop([‘c’],axis=0,inplace=True)