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AR
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Find Common elements between any two columns in each matrix

Asked by AR
on 16 Sep 2019
Latest activity Commented on by AR
on 16 Sep 2019
I'm comparing two matrices: 'KeyNeuronMat1', 100x12 and 'KeyNeuronMat2', 100x9. Each row in the matrix represents a neuron # drawn from a 100 total neurons and each column represents a group # computed by different NN so if a neuron gets assigned to that group, it is given a value "1", else "0". For each column in 'KeyNeuronMat1' (sample below), I'd like to identify which neurons (row indicies)
>> keyNeuronMat1(1:10,1:4)
ans =
1 1 1 1
0 0 0 0
0 1 0 0
0 1 1 1
1 0 0 0
0 0 0 0
0 1 0 0
0 1 0 0
0 0 1 1
0 0 1 1
are in common within each of the groups (e.g. column indicies) in 'KeyNeuronMat2' without using a loop.
>> keyNeuronMat2(1:10,5:8)
ans =
1 0 0 0
1 1 1 1
0 1 0 0
0 0 0 0
1 0 0 0
0 0 0 0
0 0 1 0
0 0 0 0
1 0 0 0
0 0 0 0
Is this possible with bsxfun as I've read about this function being used for similar but was not sure.
I've attached my data.
Thanks for any advice.

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1 Answer

Answer by Bruno Luong
on 16 Sep 2019
 Accepted Answer

Not sure but
keyNeuronMat1(1:10,1:4) & keyNeuronMat2(1:10,5:8)
Give you common neurons/groups.

  1 Comment

thanks. that works for now!

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