[utils] aggregate doesn't work correctly with most recent version of the code

[iamyihwa]

What happened + What you expected to happen

Hi,
Thanks for adding sparse versions of the reconcile methods and S matrix.
aggregate() function however doesn't seem to work correctly. It doesn't seem to do the balancing (numpy_balance), and neither creating the aggregated time series based on spec.

pip version: (previous version)

main branch:

Versions / Dependencies

main branch

Reproduction script

Code to reproduce the result :

df = pd.DataFrame(data = {'cat1': ['a', 'a', 'a'], 'cat2': ['1', '2', '3'],
                         'y': [10, 20, 30], 'ds': ['2020-01-01', '2020-02-01', '2020-03-01']})
df.insert(0, 'country', 'COUNTRY')

spec = [['country'], ['country', 'cat1'], ['country','cat1', 'cat2']]

Y_df, S_df, tags = aggregate(df, spec)
Y_df

Issue Severity

None

[candalfigomoro]

Related issue #211 ?