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May 24th, 2018
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  1. % Oc5_1b_RegressaoLinearAjusteParabola
  2. clc;
  3. % Regressão linear com reta como modelo
  4. x=[0.25; 0.30; 0.36; 0.40; 0.50; 0.60; 0.70];
  5. y=[96; 60; 35; 24; 10; 5; 3];
  6. plot(x, y, 'or');
  7. hold on;
  8. F=[ones(length(x),1)   x   1./x];
  9. p=inv(F'*F)*(F'*y);
  10. residual=norm(F*p-y);
  11. xn=[0.25:0.01:0.70];
  12. yn=p(1)+ p(2)*xn + p(3)./xn;
  13. plot(xn, yn);
  14. axis([0.2 1.0 0 100]);
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