Is it possible to call a subfunction inside a function mscript?

Is it possible to call a subfunction inside a mscript function and get the returned value?

e.g., the content of 'func.m' as below

function b = func(a)
b = subfunc(a) +1;

function c = subfunc(a)
c = a*2;

Can I call subfunc directly in the matlab workspace.

[Stephen23]

What do you mean by "subfunction" ? Do you mean a "local function" , or something else?

[Ray Lee]

For instance, a function Func is stored in file 'Func.m'. In 'Func.m', there is a function SubFunc called by the main Func function. I wanna if I can excute the SubFunc function in 'Func.m' directly.

[Stephen23]

MATLAB does not mention "subfunctions". Other functions in the same Mfile are either local functions or nested functions.

Do not call any function a "script", as a script is something quite different from a function.

"I wanna if I can excute the SubFunc function in 'Func.m' directly": lets look at the two possible cases for this:

• If Func is the main function on that Mfile, then it can call any local function in the same Mfile.
• If Func is a script then from version R2016b you can add local functions. With earlier versions doing so will throw an error.

Answer 1

[Thorsten]

No. You have to create a separate mfile that can be called by your mscript.

Answer 2

[Jan]

You can do this by a wrapper:

function Fcn = main
Fcn.func    = @func;
Fcn.subfunc = @subfunc;

function b = func(a)
b = subfunc(a) +1;

function c = subfunc(a)
c = a*2;

Now you can call from the outside:

Fcn = main();
Fcn.func(1)
Fcn.subfunc(2)

Answer 3

[Adam]

You can call a sub-function from a main function in an m-file.

You cannot call a sub-function from a script (what would the function be 'sub' of?!). If you need to then just turn your script into a function.

Edit: In response to your edited question, then Yes, what you are doing is creating a function file and then within it defining subfunctions which are only accessible to the main function of that file.

This does seem like a question that you could have got the answer to yourself instantly though by simply putting that code in a file and running it!

[Ray Lee]

Of course I know it is impossible to call the local function by excuting subfunc() from outside.

I'm asking if there is a way to call a local function from outside.