compare between element of matrix in different size

hi, i need some help here. I want to compare element between two matrices new_mat[40x11] and kmatrix[1x4].

If the 11th columns of each row in new_mat == to any element in kmatrix, it will create an another matrix call cluster_k containing element column i until 10 from new_mat

for example new_mat

[11 12 13 14 15 16 17 18 19 13 1]

[11 12 13 14 15 16 17 18 19 14 2]

[11 12 13 14 15 16 17 18 19 15 3]

kmatrix [1 2 3 4]

so will have

cluster_1 [[11 12 13 14 15 16 17 18 19 13]

cluster_2 [11 12 13 14 15 16 17 18 19 14]

cluster_3[11 12 13 14 15 16 17 18 19 15 3]

Do appreciate some help.

Below is my current code:

new_mat = [C index]

i=1

kmatrix = [1:k]

for n = i:40

if (new_mat(i,11))== kmatrix[1:k] %stuck here

cluster_k = new_mat(i,10) % and here too

end

i=i+1

end

Answer 1

[Shubham Gupta]

To check if there is any common element between 2 vectors, you may consider using 'intersect()'. So, your if condition becomes:

if isempty(intersect(new_mat(i,11)),kmatrix)
    %% create cluster_k
end

Let me know if you have doubts !