matlab中的nlinfit函数时,参数需要回归系数的初值,如何确定?function yy=model(beta0,X)a=beta0(1);b=beta0(2);c=beta0(3);d=beta0(4);e=beta0(5);x1=X(:,1);x2=X(:,2);x3=X(:,3);x4=X(:,4);x5=X(:,5);yy=a*x1+b*x2+c*x3+d*x4+e*x5;主程序如下
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![matlab中的nlinfit函数时,参数需要回归系数的初值,如何确定?function yy=model(beta0,X)a=beta0(1);b=beta0(2);c=beta0(3);d=beta0(4);e=beta0(5);x1=X(:,1);x2=X(:,2);x3=X(:,3);x4=X(:,4);x5=X(:,5);yy=a*x1+b*x2+c*x3+d*x4+e*x5;主程序如下](/uploads/image/z/3766074-42-4.jpg?t=matlab%E4%B8%AD%E7%9A%84nlinfit%E5%87%BD%E6%95%B0%E6%97%B6%2C%E5%8F%82%E6%95%B0%E9%9C%80%E8%A6%81%E5%9B%9E%E5%BD%92%E7%B3%BB%E6%95%B0%E7%9A%84%E5%88%9D%E5%80%BC%2C%E5%A6%82%E4%BD%95%E7%A1%AE%E5%AE%9A%3Ffunction+yy%3Dmodel%28beta0%2CX%29a%3Dbeta0%281%29%3Bb%3Dbeta0%282%29%3Bc%3Dbeta0%283%29%3Bd%3Dbeta0%284%29%3Be%3Dbeta0%285%29%3Bx1%3DX%28%3A%2C1%29%3Bx2%3DX%28%3A%2C2%29%3Bx3%3DX%28%3A%2C3%29%3Bx4%3DX%28%3A%2C4%29%3Bx5%3DX%28%3A%2C5%29%3Byy%3Da%2Ax1%2Bb%2Ax2%2Bc%2Ax3%2Bd%2Ax4%2Be%2Ax5%3B%E4%B8%BB%E7%A8%8B%E5%BA%8F%E5%A6%82%E4%B8%8B)
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