[英]How can I find column in matrix that matches 2 rows in matlab?
I have a matrix, that I want to find a column that has item in row1 == x, and item in row2 == y; 我有一个矩阵,我想找到一列,其中的row1 == x项,而row2 == y项; What is the fastest way to do this?
最快的方法是什么? Thanks, CP
谢谢,CP
Consider: 考虑:
colIdx = all( bsxfun(@eq, M([row1 row2],:), [x;y]) );
This is flexible in case you want to match more than two rows 如果您要匹配两行以上,这是灵活的
这对于给定的矩阵M
以及行索引row1
和row2
:
columnIndices = find((M(row1,:) == x) & (M(row2,:) == y));
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