function?corr=corrcoefficient（ab）
a=double（a）;
b=double（b）;
meana=mean2（a）;
meanb=mean2（b）;
numerator=sum（sum（（a-meana）.*（b-meanb）））;
denominator?=sqrt（sum（sum（（a-meana）.^2））*sum（sum（（b-meanb）.^2）））;
corr=numerator/denominator;

?屬性????????????大小?????日期????時間???名稱
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?????文件????????235??2014-02-28?09:54??corrcoefficient.m

?????文件????????893??2014-02-28?09:53??Ncc.m

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

?????????????????1128????????????????????2