Slicing Problem

Advanced or multi-level indexing for working with higher dimensional data is available both for Series and for DataFrames.

import pandas as pd

import numpy as np

data = pd.Series(np.random.randn(10),

index=[['a', 'a', 'a',

'c', 'c', 'c',

'b', 'b', 'b',

'd'],

[1, 2, 3, 1, 2, 3, 1, 2, 2, 3]])

print(data["a"])

print(data[:, 3])

print(data["a" : "c"])

Ordering is different!

The index needs to be sorted:

data = data.sort_index()

print(data["a" : "c"])