In a For Iterator Subsystem, how to use the iteration variable ?

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Here is my problem : I set a 1-by-N array (A) in Matlab, then I run a simulation where I use a For Iterator Subsystem (i=iteration variable). This subsystem runs N times and I'd like to use i to call A(i) in other blocks (gain, constant, lk-tables, etc...)

I can't find a way to do this since the To Workspace Block doesn't make data available until the simulation is stopped or paused.

In other words, how can I use my iteration variable in real time and call A(i) in blocks during the simulation?

Thanks a lot in advance

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Kaustubha Govind 2013-4-22

编辑：Kaustubha Govind 2013-4-22

Are these other blocks also inside the For Iterator subsystem? If not, is there a reason they aren't? Because once they're inside the For Iterator subsystem, they are effectively getting A(i) as input.

remi 2013-4-23

编辑：remi 2013-4-23

Yes they are, but my problem was too simplified. I actually need an access to cells, and A{i} isn't taken as input by my blocks but as inner parameter. Have a look on my answer to Guy Rouleau, I think my explanation is clearer. Thank you for your answer

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Guy Rouleau 2013-4-22

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The iteration variable is a signal coming out of the For Iterator block.

Inside the subsystem, you can use a Selector block:

http://www.mathworks.com/help/simulink/slref/selector.html

or Assignment block:

http://www.mathworks.com/help/simulink/slref/assignment.html

to read or write to elements of a vector or matrix A(i).

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remi 2013-4-23

Thanks for your answer, but I may have simplified my problem in a wrong way. I'll be more accurate. Actually, depending on simulation parameters, I use an array of structures which can have one, two or X cells. Let's call this array "arrStructure". X is set with Matlab before the simulation is run and doesn't change until the next simulation parameters are choosen. For instance : arrStructure{1:3} is \<1x3 cell>, and each cell is \<1x1 struct>

In the for Iterator Subsystem, I want to access data contained in arrStructure{ i } for i=1:X. For instance, I need arrStructure{i}.value in a Gain Block, or arrStructure{i}.vector and arrStructure{i}.matrix in a Look-Up Table...

I can use neither Selector block nor Assignment block in this case, am I right ?

Thanks in advance

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