compare index 1 to index s within loop. index exceed matrix dim
2 次查看(过去 30 天)
显示 更早的评论
I have 12 files (M) each with 12 columns to which I want to compare each file columns to another file columns.
for s =1:numel(M)
if all(strcmpi(M(1),M(s))) == 1
M = M(s);
end
end
However, I am getting index exceed matrix dimension. Any help as to how to improve this loop would be nice.
4 个评论
采纳的回答
Walter Roberson
2013-11-11
The first time the test succeeds, you are going to replace your array M with the single element M(s) . That leaves M as only a single element long, so the next iteration of the loop attempting to index it by anything other than 1 is going to fail.
4 个评论
Walter Roberson
2013-11-12
You are doing an approximation of comparing columns. But when you find a match, you are overwriting the M array and then attempting to continue matching. Perhaps you want something more like,
M_target = M(false); %copies the type but an empty matrix
for s =1:numel(M)
if all(strcmpi(M(1),M(s))) == 1
M_target = M(s);
end
end
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Matrix Indexing 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!