Getting ordered value

Question

I have the following Series:

ser = pd.Series({'a': 10, 'b': 21, 'c': 12, 'd': 5, 'e': 26, 'd': 17})

Which method can I use to identify the order of an element relative to others? For example, if I sort the Series in ascending order c is in the second position.

Answer 1

You can use the rank method:

ser.rank()
Out[178]: 
a    1.0
b    4.0
c    2.0
d    3.0
e    5.0
dtype: float64