0 个投票

I have 2 matrices a and b, both having size 5 x 5
I want to combine these 2 in a new matrix c, such that c = [a(:,1) b(:,1) a(:,2) b(:,2) a(:,3) b(:,3) etc];
Is this the only way doing it or is there another way?
Thanks
Johannes

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Cris LaPierre
Cris LaPierre 2022-11-22
Ran in:

1 个投票

Ran in:
Yes, you could use vertical concatenation followed by reshape.
a= rand(5)
a = 5×5
0.0173 0.7698 0.9666 0.5950 0.4746 0.6177 0.5225 0.8442 0.4543 0.3936 0.6916 0.9324 0.3006 0.4929 0.6506 0.2824 0.6577 0.2550 0.7117 0.3328 0.9762 0.9710 0.0704 0.4868 0.8103
b=rand(5)+5
b = 5×5
5.7310 5.9541 5.6878 5.2669 5.0292 5.6420 5.3310 5.8203 5.4492 5.9954 5.5594 5.1451 5.9291 5.2707 5.2556 5.1165 5.3710 5.5359 5.6458 5.9792 5.6456 5.7392 5.6668 5.4423 5.0321
% brute force
c = [a(:,1) b(:,1) a(:,2) b(:,2) a(:,3) b(:,3)]
c = 5×6
0.0173 5.7310 0.7698 5.9541 0.9666 5.6878 0.6177 5.6420 0.5225 5.3310 0.8442 5.8203 0.6916 5.5594 0.9324 5.1451 0.3006 5.9291 0.2824 5.1165 0.6577 5.3710 0.2550 5.5359 0.9762 5.6456 0.9710 5.7392 0.0704 5.6668
% using vertical concatenation and reshape
c2 = [a;b]
c2 = 10×5
0.0173 0.7698 0.9666 0.5950 0.4746 0.6177 0.5225 0.8442 0.4543 0.3936 0.6916 0.9324 0.3006 0.4929 0.6506 0.2824 0.6577 0.2550 0.7117 0.3328 0.9762 0.9710 0.0704 0.4868 0.8103 5.7310 5.9541 5.6878 5.2669 5.0292 5.6420 5.3310 5.8203 5.4492 5.9954 5.5594 5.1451 5.9291 5.2707 5.2556 5.1165 5.3710 5.5359 5.6458 5.9792 5.6456 5.7392 5.6668 5.4423 5.0321
c2 = reshape(c2,size(a,1),[])
c2 = 5×10
0.0173 5.7310 0.7698 5.9541 0.9666 5.6878 0.5950 5.2669 0.4746 5.0292 0.6177 5.6420 0.5225 5.3310 0.8442 5.8203 0.4543 5.4492 0.3936 5.9954 0.6916 5.5594 0.9324 5.1451 0.3006 5.9291 0.4929 5.2707 0.6506 5.2556 0.2824 5.1165 0.6577 5.3710 0.2550 5.5359 0.7117 5.6458 0.3328 5.9792 0.9762 5.6456 0.9710 5.7392 0.0704 5.6668 0.4868 5.4423 0.8103 5.0321

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