dataset ismember error message

Hi I get this error trying to use ismember on two datasets, please advise?

Y=ismember(ds_raw,ds)
Undefined function 'eq' for input arguments of type 'dataset'.

Error in ismember>ismemberlegacy (line 347)

                tf = (a == s);

Error in ismember (line 76)

    [varargout{1:nlhs}] = ismemberlegacy(varargin{:});

ds =

    bil          motor         vvx          cyl
    'v70'        'b234'        'aut'        4  
    'v60'        'b234'        'man'        6  
    's80'        'b326'        'man'        6  
    's80'        'b326'        'man'        6  
    's80'        'b326'        'man'        6  
    'v70'        'b234'        'aut'        4  
    'v70'        'b234'        'aut'        4

ds_raw =

    bil          motor         vvx          cyl
    'v70'        'b234'        'aut'        4  
    'v60'        'b234'        'man'        6  
    's80'        'b326'        'man'        6  
    's80'        'b234'        'aut'        4  
    'v70'        'b326'        'man'        4  
    'v70'        'c325'        'man'        4

[Azzi Abdelmalek]

What should be the result?

[Sean de Wolski]

• What release are you using?
• Does this work?

ds = dataset((1:10)');
ismember(ds,ds)

[jonas]

Hi I got the same error message when I tried ds = dataset((1:10)'); ismember(ds,ds)

I'm using Matlab R2012a version.

[the cyclist]

Just as a point of information, Sean's command worked for me, using R2012b.

[jonas]

Is it a R2012a problem then?

Answer 1

[Sean de Wolski]

ismember overloaded for datasets appears to be new in 12b. If your company/university is current on your SMS subscription you can upgrade for free.

[jonas]

I have a company licence, how do I upgrade?

[Sean de Wolski]

Either log into your account on MathWorks.com and download it or talk to your IT people who manage the license.

(Or call us :), most of the people here don't bite!)

[jonas]

Ok, thank you for answering my question!! :)