matlab函数调用出错,

matlab函数调用出错,R=30;m=0:R-1;K=1;s=cos(0.075*pi*m);u=rand(1,R)-0.5;x1=s+u;for n=1:500s=cos(0.075*pi*m);K=K+1;y{n}=ensemble_ave(s,R,K);e=MSE(s,y{n});end;subplot(231),plot(s);subplot(232),plot(u);subplot(233),plot(x1);subplot(234),plot(e);subplot(235),plot(K,e);function y=ensemble_ave(s,R,K);z=zeros(1.R);for N=1:Ku=rand(1,R)-0.5;y1=s+u;z=y1+z;end;y=y2/K;function e=MSE(s,R);d=y-s;all=sum(d^2,2);e=all/R;按enter后出现Error using ensemble_aveToo many output arguments.看哪里错了,感激不尽了.