How to generate random matrix of 0 and 1 of distinct rows?

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Cantor Set 2020-2-21

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https://ww2.mathworks.cn/matlabcentral/answers/506875-how-to-generate-random-matrix-of-0-and-1-of-distinct-rows

回答： Spencer Chen 2020-2-21

There is a function already in MATLAB GAtoolbox: crtbp.m that generates a random matrix of zeros and ones but when I performed the following loop I found that some instances there will be identical rows in the random matrix:

for i=1:200
    Ro=crtbp(5,5);
    u=unique(Ro, 'rows');
    uu=size(u,1); rr=size(Ro,1);
    if uu~=rr
        x=1
        break;
    end
end

>> uniquetest

x =

1

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I need the rows to be distincit, is there a function in matlab to do so ?

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Answer 1

Spencer Chen 2020-2-21

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I don't know if there are any.

But it's easy to write one for your specific case where you only have 5 columns. That is quite mangeable, because you only will have 2^5 = 32 patterns to select from. Something like using randperm() then to pick 5 patterns from 32 would work for you.

Blessings,

Spencer