function?[axmxstdx]?=?auto（x）
%??autoscales?matrix?x?and?returns?a?vector?of?means?（mx）?and
%??standard?deviations?（stdx）?used?in?the?scaling.??I/O?format
%??is:??[axmxstdx]?=?auto（x）
[mn]?=?size（x）;

%??Copyright
%??Barry?M.?Wise
%??1991

%??Calculate?the?mean?and?standard?deviation?of?the?input?data.
%??Open?a?matrix?with?zeros?for?the?scaled?data?（this?makes
%??the?function?faster?since?it?doesn‘t?have?to?resize?y）
mx?=?mean（x）;
stdx?=?std（x）;
ax?=?zeros（mn）;
for?i?=?1:m
??ax（i:）?=?（x（i:）?-?mx）./stdx;
end

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

????.......???????522??2012-11-20?22:40??KPCA?Codes\auto.m

????.......??????2803??2012-11-20?22:40??KPCA?Codes\Demo_kpca.m

????.......???????526??2012-11-20?22:40??KPCA?Codes\scale.m

?????目錄??????????0??2012-11-20?22:52??KPCA?Codes

-----------?---------??----------?-----??----

?????????????????3851????????????????????4