prinp.m

该文件主要包括了matlab的一些主要应用例程!对学习matlab很有帮助

load d:\ml\city93;
%cityname
CITY
stdr=std(CITY);
[n m]=size(CITY);
sddata=CITY./stdr(ones(n,1),:);
[P, princ, egenvalue, t2]=princomp(sddata);
p3=P(:, 1:3);
p3
sc=princ(:,1:2);
sc
%plot(princ(:,1),princ(:,2),'+');
%gname(cityname);
egenvalue
per=100*egenvalue/sum(egenvalue);
per
%pareto(per)
t2
[nk,prob,x2]=barttest(sddata,0.05);
nk,prob,x2
res=pcares(sddata, 2);
res