input argument is undefined in M-file ?

i have the code below:

     function mean = avg(x,n)
     mean = sum(x)/n;

when i compile, there's an error as follow:

    ??? Input argument "x" is undefined.

    Error in ==> subim1 at 2
    mean = sum(x)/n;

i wolud like to ask how can i solve this problem ? hope for help ! ^~^ !

[Walter Roberson]

When you say "compile", do you mean you use MATLAB Compiler to build an executable?

How are you invoking the code?

Answer 1

[Chanh Nguyen]

sorry, it's a green arrow button "Save and run" !

Answer 2

[Walter Roberson]

Do not use "Save and run" for any function that needs input parameters. Save the routine, yes, but then you need to invoke it from the command line, passing in the parameters you need. For example, at the command line type in

avg([3 5 9 -1 14], 5)