回归方程怎么求残差

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select * from tbl_Articles_data WHERE ArticleID=1179098 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1179098 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(404807,2767494,975608,3174843,816313,2120984,570340,3089885,3431224,817299,2613025,2455677,1066449,968265,1416738,720515,3149288,3870961,2214539,3203172,82418,1526634,1567412,3394011,1134587,1027340,1821561,846544,82416,788691) ORDER BY field (ArticleID,404807,2767494,975608,3174843,816313,2120984,570340,3089885,3431224,817299,2613025,2455677,1066449,968265,1416738,720515,3149288,3870961,2214539,3203172,82418,1526634,1567412,3394011,1134587,1027340,1821561,846544,82416,788691)