Generation of random number which needs to be passed to an array
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I have 2 variables named A and B
A has the range from -0.2 to 2.2
B has the range from -3.2 to 0.2
I need all the possible to combinations of A and B in 0.1 steps
for example
FROM
0.1 0.2
-0.1 -0.3 and so on
How do I randomly generate this?
2 个评论
James Tursa
2020-6-15
By randomly, do you mean you want to randomly pick one pair from all possible pairs? Or do you mean you want to generate the set of all possible pairs but then randomly mix them up?
回答(1 个)
Rik
2020-6-15
You can generate all combinations and mix them up like this:
[A,B]=ndgrid(-0.2:0.1:2.2,-3.2:0.1:0.2);
new_order=randperm(numel(A));
A=A(new_order);
B=B(new_order);
Now you can feed it to your next function. Whether you are able to avoid for-loops depends on what function you are trying to call. (and it may not be the optimal strategy to do so at any cost)
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