赵同学2022-08-03 10:07:28
这道题强化班里老师不是说是B吗?if the roots of the function are all less than 1 in absolute value,the AR(p)model is stationary.麻烦老师确认一下~谢谢
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Lucia2022-08-03 13:31:38
同学,你好,是分两种情况的,看下图
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