clc,clear x=[0,1,2,3,4]; %y=[0,0.075,0.086,0.052,0.0024]; y=[0,0.037,0.025,0.037,0]; scatter(x,y,'k'); %畫出原始數(shù)據(jù)散點圖 hold onduoxiangshi = polyfit(x,y,4); %3次擬合 降冪排列 disp(duoxiangshi); xi = 0:0.001:4.0; yi = polyval(duoxiangshi,xi); %多項式求值 plot(xi,yi,'b'); %觀測數(shù)據(jù)點 hold onxlabel('x'); ylabel('y'); legend('原始數(shù)據(jù)','擬合曲線');

結(jié)果

總結(jié)

以上是生活随笔為你收集整理的MATLAB 对试验点进行三次拟合的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網(wǎng)站內(nèi)容還不錯，歡迎將生活随笔推薦給好友。