'Set up the data structures to be used with the Numpy and Numba
versions of functions.
In this case, both accept recarrays.'

def _createSampleArrays(self):

    self.refsample1d = np.recarray(3, dtype=recordtype)
    self.refsample1d2 = np.recarray(3, dtype=recordtype2)
    self.refsample1d3 = np.recarray(3, dtype=recordtype)
    self.nbsample1d = np.recarray(3, dtype=recordtype)
    self.nbsample1d2 = np.recarray(3, dtype=recordtype2)
    self.nbsample1d3 = np.recarray(3, dtype=recordtype)
