関連ワード:  how to define a new dataframe in python    how to define a empty dataframe in python    how to declare a empty dataframe in python    how to define new dataframe in pandas    how to define a dataframe in python    how to identify empty dataframe in python    how to declare a dataframe in python    how to describe a dataframe in python    how to set a dataframe in python    how to define a variable as dataframe in python  
結果 : how to define a new dataframe in python