线性回归可视化 - 残差平方和

GeoGebra 命令及参数

1. Point(yAxis) → S
2. Line(S, T) → a
3. OrthogonalLine(B, xAxis) → b
4. OrthogonalLine(C, xAxis) → c
5. OrthogonalLine(A, xAxis) → d
6. OrthogonalLine(D, xAxis) → e
7. OrthogonalLine(E, xAxis) → f
8. Intersect(a, b) → H
9. Intersect(d, a) → I
10. Intersect(c, a) → J
11. Intersect(a, e) → K
12. Intersect(a, f) → L
13. Polygon(H, B, 4) → poly1, g, h, i, j, M, N
14. Polygon(I, A, 4) → poly2, k, l, m, n, O, P
15. Polygon(J, C, 4) → poly3, p, q, r, s, Q, R
16. Polygon(K, D, 4) → poly4, t, a_1, b_1, c_1, S_1, T_1
17. Polygon(L, E, 4) → poly5, d_1, e_1, f_1, g_1, U, V_1
18. FitLineY(DataSet) → h_1
19. Intersect(h_1, b) → F
20. Intersect(h_1, c) → G
21. Intersect(h_1, d) → Z
22. Intersect(h_1, e) → A_1
23. Intersect(h_1, f) → B_1
24. Polygon(F, B, 4) → poly6, i_1, j_1, k_1, l_1, C_1, D_1
25. Polygon(G, C, 4) → poly7, m_1, n_1, p_1, q_1, E_1, F_1
26. Polygon(Z, A, 4) → poly8, r_1, s_1, t_1, a_2, G_1, H_1
27. Polygon(A_1, D, 4) → poly9, b_2, c_2, d_2, e_2, I_1, J_1
28. Polygon(B_1, E, 4) → poly10, f_2, g_2, h_2, i_2, K_1, L_1
29. RSquare({(-3, 2), (-2, 1), (-1, 3), (0, 4), (1, 2), (2, 4), (3, 3), (4, 5), (6, 4)}, (0.5 * x) + 2.5) → w