Hi all,
here is the example, please run it in Stata, and ignore the issue of significance.
I can use
to calculate the turning point of the inverted u-shape.
However, I would like to calculate the turning points in Stata when the moderator `state` equals different values, for example `state=5` and `state=34`.
Any documentation (not only limited to code) that can enlighten me please let me know, thank you for your help.
here is the example, please run it in Stata, and ignore the issue of significance.
Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input float(gini pcgdp pcgdp2 state trans)
59 6.34 40.2 6 1.9
48.9 6.51 42.3 3.1 3.2
35 6.55 42.9 4.2 1.1
57 6.77 45.8 13.2 6.9
40 6.77 45.8 6 1.8
36.7 6.9 47.6 12.4 4.7
57.3 6.92 47.9 7.5 5.6
49 6.94 48.1 1.3 1.8
60 6.94 48.2 3.3 1
51.3 7.13 50.8 3.4 6.1
50.1 7.22 52.2 15.2 12.2
54 7.27 52.8 11.3 7.3
52.5 7.3 53.4 18.3 6.8
59.1 7.31 53.4 9.6 1.1
38.3 7.49 56.1 2.8 1.6
51 7.51 56.4 5.1 2.4
43 7.57 57.3 19.3 7.7
57 7.66 58.6 7.5 5.9
43 7.66 58.7 23.3 4.6
45.5 7.68 59 11.8 2.8
53.3 7.77 60.4 5 6.3
59.5 7.8 60.8 5.8 3.3
38.2 7.81 61 20.4 12
44.5 7.87 62 11 5.5
39.9 7.89 62.2 50.8 8.6
39.7 7.9 62.3 22.2 5.4
44.5 7.94 63.1 23.7 6.8
57 8.03 64.5 14.8 3.4
47.8 8.1 65.5 6.2 4.3
42.9 8.18 66.9 26.9 7.9
56.5 8.24 67.9 17.3 13.2
51.6 8.24 68 10.7 2
43.8 8.27 68.4 13.6 7.3
26 8.34 69.6 70.4 17.5
63 8.35 69.6 8.4 2.3
46 8.37 70.1 16.9 12.2
47.6 8.38 70.2 15.2 7.6
25.7 8.43 71.1 95.2 11.7
63.3 8.44 71.2 11.7 5.5
48.2 8.46 71.6 9.2 19.1
37.9 8.49 72 78.9 13.1
57 8.5 72.3 13.2 8.9
48.4 8.53 72.8 8.4 8
50.6 8.58 73.6 21.4 5.6
44.1 8.64 74.6 19.3 5.6
35.7 8.65 74.7 9.3 2.9
42.4 8.66 75.1 21.4 10.5
23.1 8.69 75.5 93.9 19.9
38.1 8.7 75.6 14.2 17.1
39.9 8.77 76.9 10.7 16.7
34.6 8.86 78.4 19.6 25.1
19.5 8.91 79.4 98.8 21.3
31.5 9.02 81.3 13.7 18.1
35.7 9.04 81.7 12.2 8.8
41 9.25 85.6 10.4 18.3
33.3 9.29 86.4 27.1 22.1
42.8 9.31 86.6 18.6 1.2
30 9.33 87.1 24.7 19.6
24.9 9.42 88.8 37.9 27.9
32.1 9.45 89.3 15 31.1
31.3 9.47 89.7 20.9 24.4
27.4 9.47 89.7 22.5 30.3
28.1 9.48 89.8 22.8 19.8
30.7 9.52 90.6 21.2 31
28 9.52 90.6 29.4 33.3
35 9.52 90.7 9.5 17.5
26.9 9.53 90.9 24.8 27.1
20.2 9.55 91.1 28.7 22
48.5 9.55 91.2 7.9 2.9
31.6 9.58 91.9 29.3 17.1
27.8 9.59 92 22.3 25.7
22.9 9.61 92.4 36.2 32.2
32 9.78 95.7 24.1 21.5
35.5 9.78 95.7 10.4 14.9
34.4 9.9 97.9 15.8 17.7
end
reg gini c.pcgdp##c.pcgdp state trans, robust
display -(_b[pcgdp]/(2*_b[c.pcgdp#c.pcgdp]))
reg gini c.pcgdp##c.pcgdp##c.state , robust
sum pcgdp state
margins, at(pcgdp=(7(0.05)10) state=(5 34 64 ))
marginsplot, ytitle("gini") xtitle("pcgdp") ///
title("") ///
legend(order(1 "-1SD" 2 "MEAN" 3 "+1SD" )) noci
Code:
display -(_b[pcgdp]/(2*_b[c.pcgdp#c.pcgdp]))
However, I would like to calculate the turning points in Stata when the moderator `state` equals different values, for example `state=5` and `state=34`.
Any documentation (not only limited to code) that can enlighten me please let me know, thank you for your help.
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