回归结果平方项为负,一次项交互项显著为负,二次项交互项显著为正,应该是倒U型关系。不加调节变量时也是倒U型,为什么用marginscontplot2画出来的是正U型?
命令:ologit health_satisfaction T_time T_time2 marrige A1 A2 ,robustmarginscontplot2 T_time,ci
- * Example generated by -dataex-. To install: ssc install dataex
- clear
- input float(health_satisfaction marrige T_time T_time2 A1 A2)
- 3 1 21.5 462.25 21.5 462.25
- 3 1 49 2401 49 2401
- 2 1 18.25 333.0625 18.25 333.0625
- 3 1 42.25 1785.0625 42.25 1785.0625
- 3 0 .75 .5625 0 0
- 3 1 28.5 812.25 28.5 812.25
- 3 1 28.25 798.0625 28.25 798.0625
- 3 1 21.5 462.25 21.5 462.25
- 3 1 14.5 210.25 14.5 210.25
- 3 1 14.5 210.25 14.5 210.25
- 2 1 21.5 462.25 21.5 462.25
- 2 1 1.5 2.25 1.5 2.25
- 2 1 .75 .5625 .75 .5625
- 3 1 14.5 210.25 14.5 210.25
- 3 1 .75 .5625 .75 .5625
- 3 1 49.25 2425.5625 49.25 2425.5625
- 2 1 14.5 210.25 14.5 210.25
- 1 1 21.5 462.25 21.5 462.25
- 2 0 25.25 637.5625 0 0
- 3 1 21.25 451.5625 21.25 451.5625
- 4 1 21.5 462.25 21.5 462.25
- 3 1 14.5 210.25 14.5 210.25
- 2 1 58 3364 58 3364
- 3 1 56 3136 56 3136
- 3 1 56.25 3164.0625 56.25 3164.0625
- 3 0 7.5 56.25 0 0
- 3 1 35.25 1242.5625 35.25 1242.5625
- 3 1 28.5 812.25 28.5 812.25
- 3 0 28.25 798.0625 0 0
- 2 1 42.25 1785.0625 42.25 1785.0625
- 4 1 28.5 812.25 28.5 812.25
- 3 0 14.5 210.25 0 0
- 3 1 42.25 1785.0625 42.25 1785.0625
- 4 1 .75 .5625 .75 .5625
- 3 0 14.5 210.25 0 0
- 3 0 7.5 56.25 0 0
- 4 1 35 1225 35 1225
- 3 1 14.5 210.25 14.5 210.25
- 4 1 14.5 210.25 14.5 210.25
- 3 0 .75 .5625 0 0
- 4 1 15.5 240.25 15.5 240.25
- 3 1 49.25 2425.5625 49.25 2425.5625
- 3 1 56.25 3164.0625 56.25 3164.0625
- 2 1 42.25 1785.0625 42.25 1785.0625
- 3 1 14.5 210.25 14.5 210.25
- 3 1 21.25 451.5625 21.25 451.5625
- 3 1 14.5 210.25 14.5 210.25
- 3 1 14.5 210.25 14.5 210.25
- 3 1 6.5 42.25 6.5 42.25
- 2 1 84 7056 84 7056
- 1 1 63 3969 63 3969
- 2 1 7.5 56.25 7.5 56.25
- 3 1 35.25 1242.5625 35.25 1242.5625
- 3 1 21.25 451.5625 21.25 451.5625
- 3 1 14.5 210.25 14.5 210.25
- 1 1 21.5 462.25 21.5 462.25
- 3 1 .75 .5625 .75 .5625
- 3 1 35.25 1242.5625 35.25 1242.5625
- 4 1 54 2916 54 2916
- 4 0 28.5 812.25 0 0
- 2 1 14.5 210.25 14.5 210.25
- 3 1 23.25 540.5625 23.25 540.5625
- 1 0 35.25 1242.5625 0 0
- 3 1 22.25 495.0625 22.25 495.0625
- 3 1 28.25 798.0625 28.25 798.0625
- 3 0 14.5 210.25 0 0
- 2 1 14.25 203.0625 14.25 203.0625
- 2 1 21.5 462.25 21.5 462.25
- 3 1 34.25 1173.0625 34.25 1173.0625
- 1 1 56 3136 56 3136
- 3 0 49.25 2425.5625 0 0
- 3 1 23 529 23 529
- 4 1 22.25 495.0625 22.25 495.0625
- 3 1 14.5 210.25 14.5 210.25
- 3 1 63 3969 63 3969
- 3 0 14.5 210.25 0 0
- 3 0 16.25 264.0625 0 0
- 4 1 42 1764 42 1764
- 4 1 18.25 333.0625 18.25 333.0625
- 3 1 24.25 588.0625 24.25 588.0625
- 4 1 10.5 110.25 10.5 110.25
- 4 1 31 961 31 961
- 2 0 17.25 297.5625 0 0
- 3 1 .75 .5625 .75 .5625
- 2 1 21.5 462.25 21.5 462.25
- 2 1 46 2116 46 2116
- 3 1 49.25 2425.5625 49.25 2425.5625
- 2 1 52.25 2730.0625 52.25 2730.0625
- 4 1 49 2401 49 2401
- 1 1 .75 .5625 .75 .5625
- 3 1 .75 .5625 .75 .5625
- 3 1 56 3136 56 3136
- 4 1 .75 .5625 .75 .5625
- 4 1 29.25 855.5625 29.25 855.5625
- 3 0 14.5 210.25 0 0
- 3 1 14.5 210.25 14.5 210.25
- 3 1 35.25 1242.5625 35.25 1242.5625
- 4 1 28.5 812.25 28.5 812.25
- 4 1 63 3969 63 3969
- 4 1 10.5 110.25 10.5 110.25
- end


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