Matlab "too many output arguments"

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Gilmar
Gilmar 2013-10-24
回答： sixwwwwww 2013-10-24
I have a function I created that takes 20 inputs, and is supposed to output 4 outputs after it uses simulink and does all the code in the function.
Also as a note, the 4 output types that I'm trying to output are different. 2 of the outputs are arrays, and the other 2 outputs are signed integers, so whole numbers.
I currently have the 1st function line as: function [w, x, y, z] = myfoo(x1, x2, ..., x20)
But I also wrote a script for testing different values and I just call on the function and pass it the 20 inputs I defined.
but for some reason when I try to get it to output my 4 values using: [w, x, y, z] = myfoo(x1, x2, ..., x20)
It gives me the error of "too many output arguments" but I don't know why.
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Gilmar
Gilmar 2013-10-24
I would, but I can't show you my code, which is why I've been trying to put in as much tidbits as I can. I'm not allowed to show my code to others.

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sixwwwwww
sixwwwwww 2013-10-24
Dear Gilmar, I wrote a sample function which takes 20 inputs and gives 4 outputs as below:
function [w, x, y, z] = myfoo(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14, x15, x16, x17, x18, x19, x20)
w = x1 + x2 + x3 + x4 + x5 + x6 + x7 + x8 + x9 + x10 + x11 + x12 + x13 + x14 + x15 + x16 + x17 + x18 + x19 + x20;
x = x1 - x2 - x3 - x4 - x5 - x6 - x7 - x8 - x9 - x10 - x11 - x12 - x13 - x14 - x15 - x16 - x17 - x18 - x19 - x20;
y = x1 * x2 * x3 * x4 * x5 * x6 * x7 * x8 * x9 * x10 * x11 * x12 * x13 * x14 * x15 * x16 * x17 * x18 * x19 * x20;
z = x1 + x2 - x3 - x4 * x5 * x6 + x7 + x8 - x9 - x10 * x11 * x12 + x13 + x14 - x15 - x16 * x17 * x18 + x19 + x20;
end
And I called this function as below:
[b, c, d, e] = myfoo(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20)
with a1, a2, ... , a20 = 1, 2, ... , 20 and I didn't got any error. So maybe you can check it and find out maybe you are allocating some value to one of your output arguments. Without code the error is difficult to sort out. I hope it helps. Good luck!

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