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Building ID Data Example

import pyblp
import numpy as np

np.set_printoptions(linewidth=1)
pyblp.__version__

'1.1.0'

In this example, we’ll build a small panel of market and firm IDs.

id_data = pyblp.build_id_data(T=2, J=5, F=4)
id_data

rec.array([([0], [0]),
           ([0], [0]),
           ([0], [1]),
           ([0], [2]),
           ([0], [3]),
           ([1], [0]),
           ([1], [0]),
           ([1], [1]),
           ([1], [2]),
           ([1], [3])],
          dtype=[('market_ids', 'O', (1,)), ('firm_ids', 'O', (1,))])