code: def rolling_data():
      # https://github.com/man-group/dtale/issues/43
      ii = pd.date_range(start="2018-01-01", end="2019-12-01", freq="D")
      ii = pd.Index(ii, name="date")
      n = ii.shape[0]
      c = 5
      data = np.random.random((n, c))
      return pd.DataFrame(data, index=ii)
  
imports: import getpass
  import os
  import random
  import string
  import unittest
  import numpy
  import pandas
  import pytest
  from pandas.tseries.offsets import Day
  from past.utils import old_div
  from six import PY3
label_desc: Use image node_id 12 for calling a global function with example usage: rolling_data() and returns: pd