Select a columns of a Matrix using Selector in Simulink

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Hidd_1 2023-6-15

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评论： Jon 2023-6-15

I am having the following simulink model, which contain a Matrix A [3×6] of doubles, and I would like have a selector that selectes the columns of the matrix. (For instance I have a constant which has a value of 2, and then I can select A(:,2))

I have tried with the selector in Simulink, but I coudn't fix it!

I appreciate any help, and Thanks in advanvced!

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Answer 1

Jon 2023-6-15

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编辑：Jon 2023-6-15

I think this is what you are trying to do, in the example below I select the first and the third column from the 3x6 matrix :

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Hidd_1 2023-6-15

It worked, thanks! However, do you have a better idea on how I can incorporate the matrix A [3×6] in a way that, when I assign a value of 2 to a certain constant, I can retrieve the vector A(:,2)?

Jon 2023-6-15

If I understand what you are asking, if you put a value of 2 into the constant block that connects to the Idx2 port of the selector you will select just column 2, that is A(:,2). Is this what you are asking?

Note the input to the Idx2 port could also be wired to a variable that changes dynamically as your simulation progresses

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