我在matlab中输入如下程序function[x,y]=DataRegress1xx=[2.38 2.44 2.70 2.98 3.32 3.12 2.14 2.86 3.50 3.20 2.78 2.70 2.36 2.42 2.62 2.80 2.92 3.04 3.26 2.30];yy=[51.11 50.63 51.82 52.97 54.47 53.33 49.90 51.99 55.81 52.93 52.87 52.36 51.38 50.87 51.02 51.29 52.73 52.81 53.59 49.77];[x,index]=sort(xx);y=yy(index);[x,y]=DataRegress1;[c,s]=polyfit(x,y,1);[yhat,w]=polyconf(c,x,s,.05);syy=sum(y.^2)-length(x)*mean(y)^2;sse=syy-c(1)*(sum(x.*y)-length(x)*mean(x)*mean(y));plot(x,yhat,'k-',x,yhat-w,'k--',x,yhat+w,'k- -',x,y,'ks',[x;x],[yhat;y],'k-')legend('Regression line','95% confidence of y',4)axis([2 3.6 57])xlabel('x(input)')ylabel('y(reponse)')titel('simple linear regression')text(2.1,56,['coefficient of determination R^2=' num2str(1-sse/syy,3)])来进行一元回归,可执行的时候弹出如下对话??? Maximum recursion limit of 500 reached. Use set(0,'RecursionLimit',N)to change the limit. Be aware that exceeding your available stack space cancrash MATLAB and/or your computer.Error in ==> C:/MATLAB6p5p1/progarm/DataRegress1.mOn line 7 ==> [x,y]=DataRegress1;执行不出意料中的图,请问是上面的提示是什么意思,应该如何解决啊,万谢!
|
