matlab 2nd min question
1 回表示 (過去 30 日間)
古いコメントを表示
I have a matrix of 7000 * 7000 in which it contains 0 value and other random ones.(only positive integers). what i want is to identify the minimum value excluding zero and subtract it from all other values, and then compute using my formulas. What i want is that the operation should not touch zero at all. It should leave it as it is....
The output i should get such that nothing happens to zeros but for remaining the min value is identified and subtracted from all.. zero should be left as it is. Dont consider it
0 件のコメント
回答 (2 件)
Azzi Abdelmalek
2013 年 6 月 7 日
編集済み: Azzi Abdelmalek
2013 年 6 月 7 日
A=[1 0 2;3 4 5;0 0 4]
b=A(:);
b=b(b~=0)
val=min(b)
%or
B=A
B(B==0)=inf;
[min_val,idx]=min(B(:))
2 件のコメント
Azzi Abdelmalek
2013 年 6 月 7 日
B=A
B(B==0)=inf; % replace all zero values by inf
[min_val,idx]=min(B(:)) % min_value is the smallest value in B and idx is its corresponding index
参考
カテゴリ
Help Center および File Exchange で Resizing and Reshaping Matrices についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!