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How to find the most similar row in matrix A to matrix B

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Mekala balaji
Mekala balaji 2015-7-1
评论： Steven Lord 2015-7-1
I have Two matrix A &B as follows"
A=[1.2 2.0 3.3;1.2 2.0 3.2;1.1 2.1 3.3]
B=[1.1 2.0 3.2]
I want to find most similar row in matrix A(&elements) to matrix B. Please kindly help some how can I trace the most similar one.
Many Thanks in advance.
  2 个评论
Steven Lord
Steven Lord 2015-7-1
A = [1 1 1];
B = [1 1 1e6];
C = [10 10 10];
Which of B or C is "most similar" to A? B matches two of the three elements exactly, but the third is rather far off. C doesn't match ANY of the elements in A exactly, but it's not as far off as B's third element.

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Andrei Bobrov
Andrei Bobrov 2015-7-1
variant
A=[1.2 2.0 3.3;1.2 2.0 3.2;1.1 2.1 3.3];
B=[1.1 2.0 3.2];
a = sqrt(sum(bsxfun(@minus,A,B).^2));
[~,t] = min(a);
out = A(t,:);

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