関連ワード:  how to make column vector in python    how to create a column array in python    how to get column in array python    how to convert column to array in python    how to make a row vector a column vector in python    how to convert row vector to column vector in python    how to convert column vector to 1d array python    how to get column length of 2d array in python    how to convert csv column to array in python    how to create a column vector in python