How to select 6 elements from 9 in matrix 3x3 using block "Selector" in Simulink?

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Anastasiya Krivtsova
评论： Anastasiya Krivtsova 2015-6-19
How to select 6 elements from 9 in matrix 3x3 using block "Selector" in Simulink? I have a matrix like this: a11 a12 a13 a21 a22 a23 a31 a32 a33 and in Scope i have 9 lines. I want to select 6 elemets: a11 a12 a13 a22 a23 a33 in order to have 6 lines in Scope.

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Martin Butcher
Martin Butcher 2015-6-19
Hi,
you can use the selector block, set the number of input dimensions to two, and set the indices as appropriate.
See example attached.
Martin

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Martin Butcher
Martin Butcher 2015-6-19
File attached this time!
Martin Butcher
Martin Butcher 2015-6-19
I see I misread the details of your original question.
I don't think you can do this directly with a single selector block. You could use three selector blocks and mux the outputs, or you could reshape it from a 3x3 matrix to 9 element array and use a selector block for each element. I prefer the latter as it is tidier.
Example attached.
Enjoy.

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