# Assuring that Data is stored by date df.sort_values(by=['date', 'ts_id'], inplace=True)
>>> df.dtypes
date int64
weight float64
resp_1 float64
resp_2 float64
resp_3 float64
...
feature_126 float64
feature_127 float64
feature_128 float64
feature_129 float64
ts_id int64
Length: 138, dtype: object