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why any function as m file, does not work on my pc?

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saeede soleymani
saeede soleymani 2015-11-25
评论： saeede soleymani 2015-11-26
I have MATLAB2014a 32bit on my pc with windows8 64bit. I wrote an m file (function), but it didn't work and had error. after, I write a so easy m file, and has error!!!!! what should I do?
function y=new_state(x,v)
y=x+v
end
error is
Error using new_state (line 2)
Not enough input arguments.

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采纳的回答

Walter Roberson
Walter Roberson 2015-11-25
If you run Simulink from the GUI menu, then variables for To Workspace blocks go in to the base workspace.
If you run Simulink by using the sim() command, then variables for To Workspace blocks go in to the workspace of the function that you call sim() in.
If you need to pull a variable out of the base workspace you can do that using evalin()
a = evalin('base', 'a');
b = evalin('base', 'b');
new_state(a, b);
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saeede soleymani
saeede soleymani 2015-11-26
Dear Mr Roberson, thanks so much for your replying. as yet, all of my questions in mathworks site answered by you. thank you

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更多回答（1 个）

Ilham Hardy
Ilham Hardy 2015-11-25
And did you call that with two arguments?
new_state(2,3)
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saeede soleymani
saeede soleymani 2015-11-25
thanks a lot, yes,it works with this. but I want call it from the main function with variables that defined in workspace from simulink
Ilham Hardy
Ilham Hardy 2015-11-25
Say you have variable a and b in the base workspace, then you can call
y = new_state(a,b);
If you want to call the new_state from within the function, you do not have direct access to the base workspace.
Perhaps it will best for you to open new question thread and better formulate your question (with more examples)?

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