用eviews进行自相关和偏相关函数的检验
eviews\u4e2d\u505a\u81ea\u76f8\u5173\u7cfb\u6570\u548c\u504f\u81ea\u76f8\u5173\u7cfb\u6570\u51fd\u6570\u7684\u5177\u4f53\u6b65\u9aa4\u662f\u600e\u6837\u7684\uff1fworkfile\u4e2d\u70b9\u5f00\u4f60\u9700\u8981\u89c2\u6d4b\u7684\u5e8f\u5217\u7a97\u53e3\uff0c\u5de6\u4e0a\u4fa7view-correlogram-OK,\u5f97\u5230\u81ea\u76f8\u5173\u548c\u504f\u76f8\u5173
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自相关系数拖尾，偏自相关系数2阶截尾（如果2的时候已经迅速收到了临界值，可能是1阶截尾）用AR（p）模型。根据信息准则判断P和Q的阶数
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