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please help

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saima
saima on 30 Mar 2012
Closed: MATLAB Answer Bot on 20 Aug 2021
how can I extract a sample value from a signal in simulink? for example the last sample of a sine function block. can it be done using selector block?

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Kaustubha Govind
Kaustubha Govind on 30 Mar 2012
If the signal is a vector, then yes, you can use the Select block to pick any element of that vector.
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K E
K E on 30 Mar 2012
Edited: K E on 14 Aug 2012
You might try Guy Rouleau's debugging suggestion in this answer
Kaustubha Govind
Kaustubha Govind on 30 Mar 2012
saima: Like I said, your signal needs to be a vector to be able to use a Selector block. It's acts as if you are indexing into it. For example:
a = [1 2 3];
b = a(3); %This is the type of operation that Selector does
It looks like what you trying to do is get just the sample at t=FinalSimulationTime. Is that correct? Could you explain what you plan to do with this value - will it be used in MATLAB or somewhere else in the model?

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