creating a function without creating a class

Probably a stupid question, but i have a test file, which is just a set of commands and instantiation of some classes, but doesn't have any classes. I want to create a function in this file. Is it possible to create a function without having a class.

[Stephen23]

@Jagdish Ashok: if you are trying to define a function in the middle of a script then this will not works. Scripts and functions cannot be mixed together on one file.

Answer 1

[Walter Roberson]

That just sounds like a regular function file to me. For example,

function test_it_out
  s = serial('COM5');   %creates an object of class serial
  t = vision.VideoReader('rhinos.avi');    %creates an object of class vision.VideoReader

[JA]

I just want a basic function

function = testfunction(x,t)
  y = AnotherFunction(x,t)
end

but i get this error

FUNCTION Keyword is invalid here, this might cause later messages about END

I guess this is because i have this function without any class.

[Walter Roberson]

function y = testfunction(x,t)
  y = AnotherFunction(x,t)
end

A function statement should either have one or more outputs like I show here, or else it should have no "=", like

function testfunction(x,t)
  y = AnotherFunction(x,t);
  disp(y)
end

Classes is not a factor in this.

[JA]

Check the pic below, please

[per isakson]

It's the documentation that's a bit "stupid". It doesn't clearly states that the line that declares a (primary/main) function must not be preceded by any executable lines - only by comments.

Your function, testfunc, will work nicely if you put it in a separate file.

See function, Declare function name, inputs, and outputs