How can I evaluate a function in a script in MATLAB? [duplicate]

Question

I am trying to write a function as a script file. And then put the variables in the function to get output as an array.

That's I am able to do:

function trythis
a = [-2 1 7.5]; 
ans = myfunction(a)
end


function y = myfunction(x) 
y = 1./(x.^2 + 1) 
end

However, it shows solution not found. I know how to call the function on the command window but on idea how to make it done all in the script file.

Thanks in advance. Bonnie

brianxautumn · Accepted Answer · 2016-07-31 04:51:19Z

1

You cant declare functions inside script files, each function must be in its own file with the name of the script.

tryThis.m:

function myAns = tryThis
a = [-2 1 7.5]; 
myAns = myFunction(a);

end

myFunction.m:

function y = myFunction( x )

y = 1./(x.^2 + 1) ;

end

now in the main command window you can do this, granted your scripts are in the correct workspace.

>> tryThis

ans =

    0.2000    0.5000    0.0175

Edit: if you want it all in one script:

function myAns = tryThis

a = [-2 1 7.5]; 
myAns = 1./(a.^2 + 1) ;

end

then call it from the command line same way.

answered Jul 31, 2016 at 4:45

brianxautumn

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3 Comments

Thank you but is it possible to get all things done in one script file?

Yeah, you can just get rid of the second function and include all the logic together.

Thank you very much. Solve my problem now. :)