Re: Another request for classdef test in Matlab

[Ben Abbott]

On Jan 4, 2013, at 6:03 PM, Michael Goffioul wrote:

> On Fri, Jan 4, 2013 at 5:57 PM, Ben Abbott <address@hidden> wrote:
> 
> On Jan 4, 2013, at 5:44 PM, Michael Goffioul wrote:
> 
> > On Fri, Jan 4, 2013 at 5:41 PM, Ben Abbott <address@hidden> wrote:
> >
> > On Jan 4, 2013, at 5:26 PM, Michael Goffioul wrote:
> >
> > > Can anyone test the following in Matlab.
> > >
> > > Have a class defined in ClassA.m as:
> > >
> > > classdef ClassA < handle
> > >   properties
> > >     x = 1;
> > >   end
> > >   methods
> > >     function obj = ClassA (x)
> > >       obj.x = x;
> > >     end
> > > end
> >
> > I had a few minutes to get back to this today.  Looks like I'm helping with 
> > the easy parts ;-)
> >
> > You missed an "end"
> >
> > classdef ClassA < handle
> >   properties
> >     x = 1;
> >   end
> >   methods
> >     function obj = ClassA (x)
> >       obj.x = x;
> >     end
> >   end
> > end
> >
> >
> > > At the prompt, execute:
> > >
> > > a(2,2) = ClassA (2)
> >
> > a(2,2) = ClassA (2)
> > Error using ClassA (line 7)
> > Not enough input arguments.
> >
> > Of course, use this instead:
> >
> > classdef ClassA < handle
> >   properties
> >     x = 1;
> >   end
> >   methods
> >     function obj = ClassA (x)
> >       if nargin > 0
> >         obj.x = x;
> >       end
> >     end
> >   end
> > end
> >
> > Michael.
> 
> Ok. That behaves like a structure, and returns a cs-list.
> 
> clear all
> a(2,2) = ClassA (2)
> 
> a =
> 
>   2x2 ClassA handle
> 
>   Properties:
>     x
> 
>   Methods, Events, Superclasses
> 
> a.x
> 
> ans =
> 
>      1
> 
> 
> ans =
> 
>      1
> 
> 
> ans =
> 
>      1
> 
> 
> ans =
> 
>      2
> 
> 
> What about the rest of the commands?
> 

opps. They are below.

>> a(1,1).x, a(2,2).x

ans =

     1


ans =

     2

>> a(1,1) == a(1,2)

ans =

     0

>> h = a(1,1)

h = 

  ClassA handle

  Properties:
    x: 1

  Methods, Events, Superclasses

>> h.x = 3

h = 

  ClassA handle

  Properties:
    x: 3

  Methods, Events, Superclasses

>> a(1,1).x, h.x

ans =

     3


ans =

     3

Ben