dataproprocess.m

统计中的逐步回归的matlab源码请各位参考指正

% DataProProcess.m
% 归一化处理,设将数组A归一到[a，b]，其计算公式如下：v = ((A-minA)/(maxA-minA))(b-a)+a
% 目前是将数据规范到[0 1]
function B = DataProProcess(A)
[m n] = size(A);
dmax = max(A,[],1);
dmin = min(A,[],1);
for j = 1:n  
    if dmax(j) ~= dmin(j)
        for i = 1:m
            B(i,j) = (A(i,j)-dmin(j))/(dmax(j)-dmin(j));
        end
    else
        for i = 1:m
            B(i,j) = 0;
        end
    end
end