Trying to find the Euclidean distance of 2 vectors with different sizes

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Steve
Steve 2022-11-5
回答： Torsten 2022-11-5
T = [
5.1000 3.5000
6.4000 3.2000
5.4000 3.4000
5.7000 2.8000
5.7000 4.4000
5.6000 2.9000 ];
X = [
5.5000 3.8000
6.4000 2.9000
4.3000 3.0000
5.4000 3.0000
4.5000 1.5000
1.1000 0.1000
1.1000 0.1000 ];
I'm trying to find the euclidean distance between each row of T and each row of X.
This is the method that I have been using to find the euclidean distance and to store the results into an vector, within a nested for loop.
for i=1:1:size(T)
for j=1:1:size(X)
distance( i ,1 ) = sqrt( (( T( i , 1 ) - X ( j , 1 )).^2 ) + (( T( i , 2) - X( j , 2 )).^2) );
end
end

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回答（1 个）

Torsten
Torsten 2022-11-5
Ran in:
T =[5.1000 3.5000
6.4000 3.2000
5.4000 3.4000
5.7000 2.8000
5.7000 4.4000
5.6000 2.9000 ];
X =[5.5000 3.8000
6.4000 2.9000
4.3000 3.0000
5.4000 3.0000
4.5000 1.5000
1.1000 0.1000
1.1000 0.1000 ];
D = pdist2(T,X)
D = 6×7
0.5000 1.4318 0.9434 0.5831 2.0881 5.2498 5.2498 1.0817 0.3000 2.1095 1.0198 2.5495 6.1400 6.1400 0.4123 1.1180 1.1705 0.4000 2.1024 5.4203 5.4203 1.0198 0.7071 1.4142 0.3606 1.7692 5.3339 5.3339 0.6325 1.6553 1.9799 1.4318 3.1385 6.2968 6.2968 0.9055 0.8000 1.3038 0.2236 1.7804 5.3000 5.3000

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