Select X, Y coordinates randomly but only do each pair 5 times
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I have a code that selects an X, Y coordinate from a list of numbers, maintains it for 5 trials, and then moves to the next in sequential order (e.g. 3, 15 to -3, 15). I now want the code to randomly select a coordinate pair each trial but only test each location 5 times at the end of testing. Any suggestion for how I can do this?
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);
% Now use x and y in some way.
end
end
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Accepted Answer
Voss
on 9 Mar 2023
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;];
n_trials = 5;
idx = repmat(1:numel(X_vector),1,n_trials);
idx = idx(randperm(numel(idx)))
for k = 1 : numel(idx)
x = X_vector(idx(k));
y = Y_vector(idx(k));
% Now use x and y in some way.
end
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