Random Matrix creation from the elements of a given vector

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Rajkumar Verma 2024-5-21

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评论： Voss 2024-5-23

Dear all,

I have a vector A containing the elements [EI, VI, I, SI, M, SS, S, VS, ES]. I want to create a 7x20 random matrix using the elements from vector A. How can I do this?

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Voss 2024-5-21

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M = A(randi(numel(A),7,20));

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Voss 2024-5-22

编辑：Voss 2024-5-22

在 MATLAB Online 中打开

I don't know what it means for a marix to have an ordered pair as an element, so I'm using two 5x10 matrices instead.

a = rand(5,10);
b = rand(5,10);
while true
    idx = a+b > 1;
    b(idx) = rand(nnz(idx),1);
    if all(a+b <= 1,'all')
        break
    end
end
disp(a)
    0.6803    0.1873    0.3608    0.1559    0.5003    0.0737    0.4319    0.9768    0.6602    0.7798
    0.7782    0.5313    0.2842    0.2559    0.6236    0.2574    0.2294    0.1369    0.3090    0.7058
    0.1423    0.9112    0.9561    0.1393    0.4185    0.1359    0.7159    0.1865    0.4885    0.3567
    0.7925    0.7438    0.2276    0.8216    0.8435    0.8321    0.3346    0.5175    0.2961    0.4162
    0.2621    0.3928    0.0201    0.8900    0.4407    0.2422    0.2344    0.4705    0.9059    0.6581
disp(b)
    0.3008    0.1674    0.5079    0.4175    0.4797    0.6370    0.0269    0.0078    0.0142    0.0654
    0.2051    0.2140    0.2644    0.0316    0.0441    0.6730    0.7432    0.0022    0.4761    0.1458
    0.2677    0.0308    0.0294    0.5593    0.5261    0.4142    0.1733    0.7507    0.2443    0.0694
    0.0950    0.1419    0.3965    0.1038    0.0673    0.0707    0.4720    0.1438    0.4402    0.4177
    0.7122    0.2491    0.5326    0.0557    0.1949    0.0756    0.3784    0.2126    0.0554    0.2765
disp(a+b)
    0.9811    0.3547    0.8687    0.5735    0.9800    0.7107    0.4587    0.9846    0.6744    0.8452
    0.9833    0.7453    0.5486    0.2875    0.6677    0.9304    0.9726    0.1392    0.7852    0.8516
    0.4100    0.9420    0.9855    0.6987    0.9446    0.5501    0.8892    0.9372    0.7329    0.4261
    0.8875    0.8857    0.6241    0.9254    0.9108    0.9028    0.8066    0.6612    0.7363    0.8340
    0.9743    0.6419    0.5526    0.9457    0.6357    0.3178    0.6128    0.6831    0.9613    0.9345