【新消息】reg和rreg有什么区别
如题，rreg回归出现如下结果，怎么看？
Huber iteration 1:  maximum difference in weights = .99840405
Huber iteration 2:  maximum difference in weights = .63153289
Huber iteration 3:  maximum difference in weights = .16006134
Huber iteration 4:  maximum difference in weights = .01788925
Biweight iteration 5:  maximum difference in weights = .19324695
confBiweight iteration 6:  maximum difference in weights = .00092911
Robust regression                                      Number of obs =    1000
F(  1,   998) = 1297.98
Prob > F      =  0.0000
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y |      Coef.   Std. Err.      t    P>|t|     [95% Conf. Interval]
-------------+----------------------------------------------------------------
x2 |   9.975346   .2768818    36.03   0.000     9.432008    10.51868
_cons |  -4.562587   .2807054   -16.25   0.000    -5.113427   -4.011746
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