I have calculated the Discrete Root Mean Square of a signal in a sampling interval equal to the stopping time of the simulation. I used this block.

I applyed the to workspace block, selecting array as save format, to see how the results are (attached). I need to select only the number different from zero, I tried to use the block Selector but I didn't reach the desired output

Someone can tell me how to use Selector properly on a Discrete Root Mean Square block?

Thanks in advance

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