def _get_num_elems(self, temperatures):
    if (self._t_max is None):
        return len(temperatures)
    else:
        i = np.argmin(np.abs((temperatures - self._t_max)))
        return (i + 1)
def _get_num_elems(self, temperatures):
    if (self._t_max is None):
        return len(temperatures)
    else:
        i = np.argmin(np.abs((temperatures - self._t_max)))
        return (i + 1)