Matrix syntax error question

8 次查看（过去 30 天）

Luke Blades 2016-4-18

评论： Guillaume 2016-4-18

Hello,

I have 2 matrices 500 x 500, A and B.

I want to replace all values within A which are larger than the corresponding values in B WITH the value in B. Hope that makes sense!

I've tried

A(A>B) = B

But i get the error:

"In an assignment A(I) = B, the number of elements in B and I must be the same."

Do I have my syntax wrong? The two matrices are definitely both 500 x 500.

Many thanks,

Luke Blades

Fangjun Jiang 2016-4-18

index=A>B;
A(index)=B(index);

Guillaume 2016-4-18

Yes, what you're missing is a filter on B. As a one liner:

A(A > B) = B(A > B);

在 Help Center 和 File Exchange 中查找有关 Performance and Memory 的更多信息

Find the treasures in MATLAB Central and discover how the community can help you!

Translated by