MATLAB: Merging several row vectors in a single matrix

merge vectors

Hey everybody, I am new to Matlab so my question may seem naive. I have a series of rows vectors A1, A2, A3…..An that I want to merge in a single matrix. I don't want to input them individually , that would be too long Is there a FOR-LOOP that I could use to do that? something that would look like:
Matrix= zeros(n);
  for i=1:n                 % n is the number of vectors
       statement...         % a code to identify A(i)
       Matrix(:,i)=A(i);    % Put the vector A(n) in the i-th column of the matrix
  end
I think that my main problem is that I don't know how to index A1, A2, A3…An in the for-loop.
Thanks for your help.

Best Answer

Naming your vectors A1,A2,A3 ... then assembling them like this is very inefficient. You want to either load them directly into the matrix (wherever you are getting these variables from) or use a cell array to store them as A{1}, A{2} ... instead. However, I will write down an answer that will work for this case, simply to solve your problem in the short term:
for i=1:n                 % n is the number of vectors
     eval(["Matrix(:,i)=A",num2str(i),";"];    % will evalute the expression - Matrix(:,i)=Ai;
end
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