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yazh90 · 2011-04-26, 10:48

最近在学习降维：有个程序代码看不懂
%center
oldA = A;
A = oldA - repmat(sum(A)/N, N, 1) - repmat((sum(A)/N)', 1, N) + sum(sum(A))/(N^2); A = (A + A')/2;
这一步是为了处理啥啊
谢谢大侠帮助啊

2011-04-26, 10:48	#1
yazh90 初级会员注册日期: 2011-04-26 帖子: 2 声望力: 0	求助最近在学习降维：有个程序代码看不懂 %center oldA = A; A = oldA - repmat(sum(A)/N, N, 1) - repmat((sum(A)/N)', 1, N) + sum(sum(A))/(N^2); A = (A + A')/2; 这一步是为了处理啥啊谢谢大侠帮助啊