Why is simulink model called with an invalid flag?

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I made a simulink model with four variables in it.
The code
var1 = 0.14
var2 = 0.35
var3 = 1000000
var4 = 1000
I = sim('modelname.slx')
works properly, but when I wrap this up in the function like
function I = mdlname(var1, var2, var3, var4)
I = sim('modelname.slx')
end
mdlname(0.14, 0.35, 1000000, 1000)
It says that the model was called with an invalid flag.
Why is this happening?

Risposta accettata

stozaki
stozaki il 14 Set 2020
Hello Seunguk,
If you call a function, you need to use variables in the function workspace.
ret = mdlname(0.14, 0.35, 1000000, 1000);
function I = mdlname(var1, var2, var3, var4) %#ok<INUSD>
I = sim('modelname.slx','SrcWorkspace','current');
end
document : Input Arguments section of sim.
Regards,
stozaki

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