Re: Filter dataset by column value Wrapper Python

Peter Reutemann <[email protected]>
Newsgroups gmane.comp.ai.weka
Message-ID <[email protected]>
Post your code, otherwise it is impossible to see what's going wrong. For instance, my example used the last attribute in the iris dataset, but yours is the first.

Cheers, Peter

On October 29, 2021 8:45:41 PM GMT+13:00, [email protected] wrote:
>I get this error:
>
>TypeError: 'NoneType' object is not iterable
>
>in 
>
>for val in vals:
>
>The arff file has this:
>
>@RELATION Vehs
>
>@ATTRIBUTE vehicle_id {0,1,2,3,4,5,6,7,8,9,10, ... ,2446,2448,2449,2450,2453}
>@ATTRIBUTE latitude REAL
>@ATTRIBUTE longitude REAL
>
>The problem is the way I've declared the attribute vehicle_id?
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--
Peter Reutemann
Dept. of Computer Science
University of Waikato, NZ
+64 (7) 858-5174 (office)
+64 (7) 577-5304 (home office)
http://www.cms.waikato.ac.nz/~fracpete/
http://www.data-mining.co.nz/.

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