matlab ar模型怎么计算出系数,y=a1*x1+a2*x2+a3*x3+a4*x4+et,怎么求a1,a2,a3,a4,求详细程序,
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![matlab ar模型怎么计算出系数,y=a1*x1+a2*x2+a3*x3+a4*x4+et,怎么求a1,a2,a3,a4,求详细程序,](/uploads/image/z/1324752-24-2.jpg?t=matlab+ar%E6%A8%A1%E5%9E%8B%E6%80%8E%E4%B9%88%E8%AE%A1%E7%AE%97%E5%87%BA%E7%B3%BB%E6%95%B0%2Cy%3Da1%2Ax1%2Ba2%2Ax2%2Ba3%2Ax3%2Ba4%2Ax4%2Bet%2C%E6%80%8E%E4%B9%88%E6%B1%82a1%2Ca2%2Ca3%2Ca4%2C%E6%B1%82%E8%AF%A6%E7%BB%86%E7%A8%8B%E5%BA%8F%2C)
matlab ar模型怎么计算出系数,y=a1*x1+a2*x2+a3*x3+a4*x4+et,怎么求a1,a2,a3,a4,求详细程序,
matlab ar模型怎么计算出系数,y=a1*x1+a2*x2+a3*x3+a4*x4+et,怎么求a1,a2,a3,a4,求详细程序,
matlab ar模型怎么计算出系数,y=a1*x1+a2*x2+a3*x3+a4*x4+et,怎么求a1,a2,a3,a4,求详细程序,
x=[x1 x2 x3 x4]; % 定义样本空间
y %测量值
a=[a1 a2 a3 a4]; %待求系数
%Matrix form of equation
y=x*a;
a=x\y;