"Continue" in "for loop" based on trial count

I have the following loop set up:

X_vector        = [3; -3; -9; -15; -21; -15; -9; -3; 3; 3; -3; -9; -15; -21; -21; -15; -9; -3; 3; 3; -3; -9; -15; -21; -15; -9; -3; 3;];
Y_vector        = [15; 15; 15; 15; 9; 9; 9; 9; 9; 3; 3; 3; 3; 3; -3; -3; -3; -3; -3; -9; -9; -9; -9; -9; -15; -15; -15; -15;];
for k = 1 : numel(X_vector)
    x = X_vector(k);
    y = Y_vector(k);
    % Now use x and y in some way.
end

I want the loop to run through all the X and Y vector locations but change every 5 trials to the next X_vector and Y_vector pair (e.g. from (3, 15) to (-3, 15). Do I use a continue function to this?

Thank you in advance for your help!

Answer 1

[Voss]

Maybe this:

for k = 1 : numel(X_vector)
    for n = 1 : 5
        x = X_vector(k);
        y = Y_vector(k);
        % Now use x and y in some way.
    end
end

[HumbleCoder]

Still not shifting unfortunately.

[Voss]

I interpreted the question to mean that you want to use the first element of X_vector and Y_vector 5 times, then go to the second element and use those 5 times, and so on, so that x and y would go like:

(3,15)
(3,15)
(3,15)
(3,15)
(3,15)
(-3,15)
(-3,15)
(-3,15)
(-3,15)
(-3,15)
(-9,15)
(-9,15)
(-9,15)
(-9,15)
(-9,15)
(-15,15)
(-15,15)
(-15,15)
(-15,15)
(-15,15)
etc.

If that's not what you want, then please explain what you do want.

[HumbleCoder]

Yep! Exactly what i want! When I tried your suggestion, it only ran 5 trials at the first paired X,Y coordinates then stopped.

[Voss]

Here's the same code as in my answer but with a disp statement to show (x,y) each time. You can see it's as intended.

X_vector        = [3; -3; -9; -15; -21; -15; -9; -3; 3; 3; -3; -9; -15; -21; -21; -15; -9; -3; 3; 3; -3; -9; -15; -21; -15; -9; -3; 3;];
Y_vector        = [15; 15; 15; 15; 9; 9; 9; 9; 9; 3; 3; 3; 3; 3; -3; -3; -3; -3; -3; -9; -9; -9; -9; -9; -15; -15; -15; -15;];
for k = 1 : numel(X_vector)
    for n = 1 : 5
        x = X_vector(k);
        y = Y_vector(k);
        disp([x,y]);
        % Now use x and y in some way.
    end
end

     3    15

     3    15

     3    15

     3    15

     3    15

    -3    15

    -3    15

    -3    15

    -3    15

    -3    15

    -9    15

    -9    15

    -9    15

    -9    15

    -9    15

   -15    15

   -15    15

   -15    15

   -15    15

   -15    15

   -21     9

   -21     9

   -21     9

   -21     9

   -21     9

   -15     9

   -15     9

   -15     9

   -15     9

   -15     9

    -9     9

    -9     9

    -9     9

    -9     9

    -9     9

    -3     9

    -3     9

    -3     9

    -3     9

    -3     9

     3     9

     3     9

     3     9

     3     9

     3     9

     3     3

     3     3

     3     3

     3     3

     3     3

    -3     3

    -3     3

    -3     3

    -3     3

    -3     3

    -9     3

    -9     3

    -9     3

    -9     3

    -9     3

   -15     3

   -15     3

   -15     3

   -15     3

   -15     3

   -21     3

   -21     3

   -21     3

   -21     3

   -21     3

   -21    -3

   -21    -3

   -21    -3

   -21    -3

   -21    -3

   -15    -3

   -15    -3

   -15    -3

   -15    -3

   -15    -3

    -9    -3

    -9    -3

    -9    -3

    -9    -3

    -9    -3

    -3    -3

    -3    -3

    -3    -3

    -3    -3

    -3    -3

     3    -3

     3    -3

     3    -3

     3    -3

     3    -3

     3    -9

     3    -9

     3    -9

     3    -9

     3    -9

    -3    -9

    -3    -9

    -3    -9

    -3    -9

    -3    -9

    -9    -9

    -9    -9

    -9    -9

    -9    -9

    -9    -9

   -15    -9

   -15    -9

   -15    -9

   -15    -9

   -15    -9

   -21    -9

   -21    -9

   -21    -9

   -21    -9

   -21    -9

   -15   -15

   -15   -15

   -15   -15

   -15   -15

   -15   -15

    -9   -15

    -9   -15

    -9   -15

    -9   -15

    -9   -15

    -3   -15

    -3   -15

    -3   -15

    -3   -15

    -3   -15

     3   -15

     3   -15

     3   -15

     3   -15

     3   -15

Maybe something in the code you're running (which is replaced by "% Now use x and y in some way." here) runs into an error, which causes execution to stop, or exits the loops early.

[HumbleCoder]

The error was on my end!! Thank you so much for helping me!! Your suggestion works like a charm!

[Voss]

You're welcome! Glad you got it to work!