How can I reiterate a vector in side for loop when a condition is satisfied ?

I want to reiterate the angle when the condition is met, I tried to explain the question via the code below. I want re-iterate the value of the angle of the outer for loop (when the condition is met), in inner for loop in all the next iterations, in other words fix the value of angle that determined in the outer for loop and make it taking in consideration in the inner for loop in all next iterations.

Thanks in advance.

v=2;% velocity is 2 m/sec
for kk=1:100
    for j=1:1                                            % OUTER LOOP
        PreviousselectAngle_Max = selectAngle_Max(j)
        angles= [21 25 36 80 90];
        RandomizeOverAngles=randperm(numel(angles))
        for i=1:1:5                                      % INNER LOOP
            selectAngle = angles(RandomizeOverAngles(i))
            displ(i,:) = [cos(selectAngle).v,sin(selectAngle).v]; % displacement
            if Y  % Condition is satisfied 
                displ = [cos(PreviousselectAngle_Max).v,sin(PreviousselectAngle_Max).v]; % Here I want in this loop
                % only re-iterate PreviousselectAngle_Max in the all next
                % iterations.
            
            X(i) =do some calculations
           end
        end
        [max,idx]=max(X)
        selectAngle_Max(j) = angles(RandomizeOverAngles(j))
        Y = condition % X is a condition
        
    end
end

Answer 1

[Harsh Sanghai]

Hi,

Based on your explanation, it seems like you want to fix the value of "PreviousselectAngle_Max" in the inner loop of the outer loop iterations where the condition is met. To achieve this, you can introduce a new variable "fixedAngle" that will store the value of "PreviousselectAngle_Max" when the condition is met. Then, you can use this "fixedAngle" variable to replace "PreviousselectAngle_Max" in the inner loop.

v = 2; % velocity is 2 m/sec
for kk = 1:100
    for j = 1:1 % OUTER LOOP
        PreviousselectAngle_Max = selectAngle_Max(j);
        angles = [21 25 36 80 90];
        RandomizeOverAngles = randperm(numel(angles));
        fixedAngle = NaN; % initialize fixedAngle to NaN
        for i = 1:1:5 % INNER LOOP
            selectAngle = angles(RandomizeOverAngles(i));
            if ~isnan(fixedAngle)
                % use fixedAngle instead of PreviousselectAngle_Max
                displ(i,:) = [cos(fixedAngle)*v, sin(fixedAngle)*v]; 
            else
                displ(i,:) = [cos(selectAngle)*v, sin(selectAngle)*v]; % displacement
            end
            if Y  % Condition is satisfied 
                fixedAngle = PreviousselectAngle_Max; % fix the angle when condition is met
            end
            X(i) = do_some_calculations(displ(i,:));
        end
        [max, idx] = max(X);
        selectAngle_Max(j) = angles(RandomizeOverAngles(j));
        Y = condition; % Y is a condition variable
    end
end

[omar th]

@Harsh Sanghai Thank you so much for your answer, you got my point and your answer is sufficient, thanks again