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bobguy 发表于 2012-5-6 23:54 What you need is the shape function. The example is attached below, proc iml;
harlon1976 发表于 2012-5-7 07:37 感谢你的回复,你这个方法时按照行向量进行拉直,结果为 1 2
bobguy 发表于 2012-5-7 08:17 I thought you would figure that out. Transposing the A matrix will do it.