基于MATLAB的数据处理与统计作图概要(共16页).doc

精选优质文档-倾情为你奉上Smooth函数：load count.dat;c=smooth(count(:);C1=reshape(c,24,3);subplot(3,1,1);plot(count,:);hold on;plot(C1,-);C2=zeros(24,3);for I=1:3C2(:,I)=smooth(count(:,I);end;subplot(3,1,2);plot(count,:);hold on;plot(C2,-);subplot(3,1,3);plot(C2-C1,o-); x=15*rand(150,1);y=sin(x)+0.5*(rand(size(x)-0.5);y(ceil(length(x)*rand(2,1)=3;noise=normrnd(0,15,150,1);y=y+noise; yy1=smooth(x,y,0.1,loess); yy2=smooth(x,y,0.1,rloess);