1axis = 1 => 'Coulumn'
2axis = 0 => 'Row'
3
4+------------+---------+--------+
5| | A | B |...
6+------------+---------+---------
7| 0 | 0.626386| 1.52325|----axis=1----->
8+------------+---------+--------+
9 . | |
10 . | axis=0 |
11 ↓ ↓