Combining many matrices into one using loop.

I' m running a for loop say 'n' times,everytime different column size of matrices will be generated i.e. 100x8, 100×7, 100×6, 100×5 till 100×1.It means, every R×C matrix in the loop, R is fixed (say, 100) but C varies 8 to 1. I have to join all these matrices into one,such that at last run I will have a matrix of size 100x36 for the above example. How to solve this?

Answer 1

[Matt J]

Store them in a cell and then concatenate, e.g.,

for i=1:4

    C{1,i}=rand(10,randi(5));
    
end
C,

C = 1×4 cell array
    {10×1 double}    {10×4 double}    {10×4 double}    {10×3 double}

A=[C{:}]

A = 10×12

0.1012 0.5847 0.0422 0.0927 0.3365 0.5994 0.7556 0.2340 0.8685 0.6933 0.5492 0.4385 0.3521 0.9806 0.4934 0.5638 0.9683 0.5351 0.7645 0.3812 0.7980 0.2392 0.4712 0.9655 0.7107 0.3087 0.6544 0.8404 0.5521 0.2502 0.5676 0.0760 0.5621 0.7269 0.8393 0.7572 0.7807 0.4537 0.8952 0.5111 0.9963 0.3561 0.5162 0.0777 0.9753 0.1392 0.3588 0.0231 0.2646 0.9981 0.3786 0.8553 0.0252 0.9553 0.5662 0.6819 0.9702 0.8811 0.3065 0.9597 0.5111 0.5923 0.8939 0.0624 0.6811 0.1550 0.0092 0.2848 0.6800 0.4390 0.1945 0.7882 0.3430 0.0192 0.6772 0.3248 0.9243 0.7624 0.0232 0.7866 0.0629 0.4554 0.8123 0.7840 0.7077 0.9853 0.2211 0.0838 0.7731 0.0755 0.3571 0.1842 0.6388 0.0938 0.9734 0.6791 0.6776 0.8526 0.8012 0.6263 0.6020 0.3623 0.8503 0.4096 0.5787 0.1684 0.9371 0.1240 0.3658 0.9243 0.7607 0.5523 0.9924 0.9549 0.5292 0.6462 0.1245 0.5942 0.0552 0.0137

[Mahmud]

Great! It works perfectly. Thanks 👍