Ajout de la question 3 exo 4
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Exo4/Question3.sce
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Exo4/Question3.sce
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//Revenu
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revenu = data(find(data(:,13) >=0), 13);
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//Taux de mortalité infantile
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tauxMortaliteInfantile = data(find(data(:,13) >=0), 7);
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//coefficient de correlation
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r = correl(revenu, tauxMortaliteInfantile);
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mprintf("Coefficient de correlation : %f\n", r);
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[a, b] = reglin(revenu', tauxMortaliteInfantile');
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//affichage
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plot2d(revenu, tauxMortaliteInfantile, -1);
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plot(revenu', a*revenu'+b);
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xtitle("Taux de mortalité infantile en fonction du revenu", "Revenu national brut ppa par habitant (en $US)", "Taux de mortalité infantile (pour 1000 naissances)");
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legend(["Nuage de points", "Régression linéaire"]);
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image/tauxmortarevenu.jpg
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image/tauxmortarevenu.jpg
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