Newbie keeps getting "invalid call to script" error

[Faraz Hussain]

I created a simple file called BasicClass.m but when I run from the command prompt, I get:

octave:3> a=BasicClass

error: invalid call to script /home/hussaif1/octave/BasicClass.m

The BasicClass.m file  is in the same folder as where I launch octave. It contains this code:

classdef BasicClass

   properties

      Value

   end

   methods

      function r = roundOff(obj)

         r = round([obj.Value],2);

      end

      function r = multiplyBy(obj,n)

         r = [obj.Value] * n;

      end

   end

end