union multiple arrays (more than two)

I want to union more than two arrays. Thank you

Answer 1

[Matt J]

The obvious way it so use a loop,

U=arrays{1}; %cell array containing arrays 
for i=2:N

    U=union(U,array{i});
    
end

Are you asking if there is a way that doesn't use a loop? No, I don't believe there is.

[Ioannis Vourvachakis]

https://www.mathworks.com/matlabcentral/fileexchange/24834-union-of-several-arrays

That I was asking about, I just found it. Thank you for your response anyway!