tout (time) is not working

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Ayoub Bouhal 2020-5-30

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评论： Ameer Hamza 2020-6-2

so while i was using simulink to try to modelise a signal schematic and when i use the gain component and try to put this expression tout(length(tout)) in the gain expression i get the following error 'Variable 'tout' does not exist.' , well i m not an expert on matlab so if you guys can help it would be much appreciated

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回答（1 个）

Ameer Hamza 2020-5-30

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tout is only created after the simulation is complete. Therefore, you cannot use it as an input to gain. It seems that you want to find out the stop time of the simulation. If yes, then you can use the following command in the gain block.

str2num(get_param(bdroot, 'StopTime'))