最小二乘回归线猜测

GeoGebra 命令及参数

1. Point(yAxis) → yintercept
2. Line(yintercept, moveme) → f
3. OrthogonalLine(A, xAxis) → a
4. OrthogonalLine(E, xAxis) → e
5. OrthogonalLine(B, xAxis) → b
6. OrthogonalLine(D, xAxis) → d
7. OrthogonalLine(C, xAxis) → c
8. Intersect(a, f) → fa
9. Intersect(e, f) → fe
10. Intersect(b, f) → fb
11. Intersect(f, c) → fc
12. Intersect(d, f) → fd
13. Polygon(A, fa, 4) → polyA_1, p_1, h, i, j, M, N
14. Polygon(fe, E, 4) → polyE_1, p_2, l, m, n, O, P
15. Polygon(B, fb, 4) → polyB_1, p_3, q, r, s, Q, R
16. Polygon(fd, D, 4) → polyD_1, p_4, a_1, b_1, c_1, S, T
17. Polygon(fc, C, 4) → polyC_1, p_5, e_1, f_1, g_1, U, V
18. Sum(A1:A5) → A6
19. FitLineY({A, B, C, D, E}) → g
20. PMCC({A, B, C, D, E}) → u
21. Intersect(a, g) → ga
22. Intersect(b, g) → gb
23. Intersect(c, g) → gc
24. Intersect(d, g) → gd
25. Intersect(e, g) → ge
26. Intersect(g, x = 0) → F
27. Slope(f) → slope_1
28. Slope(g) → slope_2