MATLAB: Reducing a vector size when it is being updated in a loop

arraysize;

Hi,
I have a vector A that is being updated in a loop, A contains data from a Trial, and the length of it changes with each iteration. I want to make the length of each A the same so the plots are of the same size.
Trial 1 length = 497 x 12, Trial 2 length = 700 x 12 … Trial 5 length = 687×12 ( I want to get a 497×12 vector for all trials)
I currently have this piece of code, which find the smallest length of the A – the problem is the line of code that the smallest length out is inside the loop and after each iteration it changes.
The smallest number is a hint to how long the array A should be, since it varies for each trial uploaded.
I hope the below code helps
smallest = 10000;
for h=1:5
    
    %code to load all script files
       
    if h==1
        A = dlmread("Trial 1");
    elseif h==2
        A = dlmread("Trial 2");
    elseif h==3
        A = dlmread("Trial 3");
    elseif h==4
        A= dlmread("Trial 4");
    elseif h==5
        A= dlmread("Trial 5");
    end
    
     [x , y] = size(A);
    if x<smallest
        smallest = x; %the smallest length of rows for A
    end
    
    
    
    
    ...
        
end

Best Answer

for h=5:-1:1
    
    %code to load all script files
       
    if h==1
        A = dlmread("Trial 1");
    elseif h==2
        A = dlmread("Trial 2");
    elseif h==3
        A = dlmread("Trial 3");
    elseif h==4
        A= dlmread("Trial 4");
    elseif h==5
        A= dlmread("Trial 5");
    end
    
    Acell{h}=A;
end
smallest = min(  cellfun(@(c) size(c,1), Acell) );
Ashort=cellfun(@(c)c(1:smallest,:) , Acell,'uni',0);
for i=1:numel(Ashort)
    
    figure(i); plot(Ashort{i});
    
end
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