- xi: reg y x1 i.g 2.g#c.x2
其结果为
- . xi: reg y x1 i.g 2.g#c.x2
- i.g _Ig_1-4 (naturally coded; _Ig_1 omitted)
- Source | SS df MS Number of obs = 15
- -------------+---------------------------------- F(5, 9) = 1.30
- Model | 7.24849487 5 1.44969897 Prob > F = 0.3446
- Residual | 10.0417145 9 1.11574605 R-squared = 0.4192
- -------------+---------------------------------- Adj R-squared = 0.0966
- Total | 17.2902093 14 1.23501495 Root MSE = 1.0563
- ------------------------------------------------------------------------------
- y | Coef. Std. Err. t P>|t| [95% Conf. Interval]
- -------------+----------------------------------------------------------------
- x1 | .109504 .2775011 0.39 0.702 -.5182471 .737255
- _Ig_2 | .4514652 .8329476 0.54 0.601 -1.432793 2.335723
- _Ig_3 | .8563138 .8074923 1.06 0.317 -.9703607 2.682988
- _Ig_4 | -.885242 .8077782 -1.10 0.302 -2.712563 .9420791
- |
- g#c.x2 |
- 2 | .2431444 .5419723 0.45 0.664 -.9828822 1.469171
- |
- _cons | -.2477564 .6107636 -0.41 0.694 -1.6294 1.133887
- ------------------------------------------------------------------------------



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