linearmodels.iv.covariance.kernel_weight_bartlett¶ linearmodels.iv.covariance.kernel_weight_bartlett(bw: float, *args: int) → ndarray[Any, dtype[float64]][source]¶ Kernel weights from a Bartlett kernel Parameters:¶ bw: float¶Maximum lag to used in kernel Returns:¶ Weight array ordered by lag position (maxlag + 1) Return type:¶ numpy.ndarray Notes \[w_i = 1 - i / (m + 1), \, i < m\]