35 lines
1,008 B
Mathematica
35 lines
1,008 B
Mathematica
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clear;
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close all;
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taille_ecran = get(0,'ScreenSize');
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L = taille_ecran(3);
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H = taille_ecran(4);
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% Calcul du mod<EFBFBD>le exact :
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beta_0 = 115;
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beta_d = 123;
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beta = [133,96,139,118];
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n_affichage = 200; % Utilisation de 200 points pour l'affichage
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pas_affichage = 1/(n_affichage-1);
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x = 0:pas_affichage:1;
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y = bezier(beta_0,beta,beta_d,x);
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% Trac<EFBFBD> du mod<EFBFBD>le exact (trait noir) :
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figure('Name','Estimation de parametres','Position',[0.4*L,0.05*H,0.6*L,0.7*H]);
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plot(x,y,'-k','LineWidth',2);
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set(gca,'FontSize',20);
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xlabel('$x$','Interpreter','Latex','FontSize',30);
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ylabel('$y$','Interpreter','Latex','FontSize',30);
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hold on;
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% Calcul des donn<EFBFBD>es d'apprentissage (bruit blanc sur les ordonn<EFBFBD>es) :
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n_app = 50;
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pas_app = 1/(n_app-1);
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x_j = 0:pas_app:1;
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sigma = 0.5;
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y_j = bezier_bruitee(beta_0,beta,beta_d,x_j,sigma);
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D_app = [x_j ; y_j];
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% Trac<EFBFBD> des donn<EFBFBD>es d'apprentissage (croix bleues) :
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plot(x_j,y_j,'+b','MarkerSize',10,'LineWidth',3);
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legend(' Modele exact',' Donnees d''apprentissage','Location','Best');
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