optimize my matrix function
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danielle sisserman
on 7 Nov 2020
Commented: danielle sisserman
on 7 Nov 2020
this is my code:
t=1;
for j=k_indices
knn_labels(t,1) = classifier.Ytrain(j,1);
t = t+1;
end
what I'm doing here is using a vector of indices to create a vector of the values at those indices using some other matrix:
example:

But, I am sure that there is some pretty one liner that does this. Any one knows what that line looks like?
Thank you
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