环境信息
- ModelArts
- Notebook - Multi-Engine 2.0 (python3)
- JupyterLab - Notebook - Conda-python3
- pandas 0.22.0
- JupyterLab - Notebook - Conda-python3
- Notebook - Multi-Engine 2.0 (python3)
Pandas DataFrame rename 列名添加后缀
df = pd.DataFrame(np.random.randint(100,size=(10,10)))
df
# 修改列名
# inplace=True 修改原来的,不生成副本
df.rename(columns=lambda x:str(x)+"_mean", inplace=True)
df
help
help(df.rename)
Help on method rename in module pandas.core.frame:
rename(mapper=None, index=None, columns=None, axis=None, copy=True, inplace=False, level=None) method of pandas.core.frame.DataFrame instance
Alter axes labels.
Function / dict values must be unique (1-to-1). Labels not contained in
a dict / Series will be left as-is. Extra labels listed don't throw an
error.
See the :ref:`user guide <basics.rename>` for more.
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备注
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