作业帮matlab多项式曲线拟合问题现有两组离散的数据X=[1,2,3,4,5,6,7,8,20,21,22,23,27,28,31,32,33]与之对应的y=[3.5,3.8,3.9,4.1,4.3,4.5,4.4,4.8,8.9,9.0,9.2,9.6,9.9,10.5,11.1,12.0,12.5],如何编写程序拟合出一个曲线来估计x中
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![matlab多项式曲线拟合问题现有两组离散的数据X=[1,2,3,4,5,6,7,8,20,21,22,23,27,28,31,32,33]与之对应的y=[3.5,3.8,3.9,4.1,4.3,4.5,4.4,4.8,8.9,9.0,9.2,9.6,9.9,10.5,11.1,12.0,12.5],如何编写程序拟合出一个曲线来估计x中](/uploads/image/z/8859626-26-6.jpg?t=matlab%E5%A4%9A%E9%A1%B9%E5%BC%8F%E6%9B%B2%E7%BA%BF%E6%8B%9F%E5%90%88%E9%97%AE%E9%A2%98%E7%8E%B0%E6%9C%89%E4%B8%A4%E7%BB%84%E7%A6%BB%E6%95%A3%E7%9A%84%E6%95%B0%E6%8D%AEX%3D%5B1%2C2%2C3%2C4%2C5%2C6%2C7%2C8%2C20%2C21%2C22%2C23%2C27%2C28%2C31%2C32%2C33%5D%E4%B8%8E%E4%B9%8B%E5%AF%B9%E5%BA%94%E7%9A%84y%3D%5B3.5%2C3.8%2C3.9%2C4.1%2C4.3%2C4.5%2C4.4%2C4.8%2C8.9%2C9.0%2C9.2%2C9.6%2C9.9%2C10.5%2C11.1%2C12.0%2C12.5%5D%2C%E5%A6%82%E4%BD%95%E7%BC%96%E5%86%99%E7%A8%8B%E5%BA%8F%E6%8B%9F%E5%90%88%E5%87%BA%E4%B8%80%E4%B8%AA%E6%9B%B2%E7%BA%BF%E6%9D%A5%E4%BC%B0%E8%AE%A1x%E4%B8%AD)
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matlab多项式曲线拟合问题现有两组离散的数据X=[1,2,3,4,5,6,7,8,20,21,22,23,27,28,31,32,33]与之对应的y=[3.5,3.8,3.9,4.1,4.3,4.5,4.4,4.8,8.9,9.0,9.2,9.6,9.9,10.5,11.1,12.0,12.5],如何编写程序拟合出一个曲线来估计x中
matlab多项式曲线拟合问题
现有两组离散的数据X=[1,2,3,4,5,6,7,8,20,21,22,23,27,28,31,32,33]与之对应的y=[3.5,3.8,3.9,4.1,4.3,4.5,4.4,4.8,8.9,9.0,9.2,9.6,9.9,10.5,11.1,12.0,12.5],如何编写程序拟合出一个曲线来估计x中缺失点的走势,
matlab多项式曲线拟合问题现有两组离散的数据X=[1,2,3,4,5,6,7,8,20,21,22,23,27,28,31,32,33]与之对应的y=[3.5,3.8,3.9,4.1,4.3,4.5,4.4,4.8,8.9,9.0,9.2,9.6,9.9,10.5,11.1,12.0,12.5],如何编写程序拟合出一个曲线来估计x中
X=[1,2,3,4,5,6,7,8,20,21,22,23,27,28,31,32,33];
y=[3.5,3.8,3.9,4.1,4.3,4.5,4.4,4.8,8.9,9.0,9.2,9.6,9.9,10.5,11.1,12.0,12.5];
x=1:0.01:33;
y1=polyval(polyfit(X,y,1),x);
plot(X,y,x,y1)