Question

I have a pandas Series with an integer index which I’ve sorted (by value), how I access values by position in this Series.

For example:

s_original = pd.Series({0: -0.000213, 1: 0.00031399999999999999, 2: -0.00024899999999999998, 3: -2.6999999999999999e-05, 4: 0.000122})
s_sorted = np.sort(s_original)

In [3]: s_original
Out[3]: 
0   -0.000213
1    0.000314
2   -0.000249
3   -0.000027
4    0.000122

In [4]: s_sorted
Out[4]: 
2   -0.000249
0   -0.000213
3   -0.000027
4    0.000122
1    0.000314

In [5]: s_sorted[3]
Out[5]: -2.6999999999999999e-05

But I would like to get the value 0.000122 i.e. the item in position 3.
How can I do this?

Answer 1

Replace the line

b = np.sort(a)

with

b = pd.Series(np.sort(a), index=a.index)

This will sort the values, but keep the index.

EDIT:

To get the fourth value in the sorted Series:

np.sort(a).values[3]