7 feb 2006 kl. 12.28 skrev Nick Lothian:
> karl wettin wrote:
>
>> I really like the simplicity of the C4J API, but think it's too
>> bad there is no support for other than nominal values. Have you
>> considered to add support for numeric values in the interfaces?
>> I'd love to plug in the Weka J48 (and others) to the same API.
>> The C4J classifiers could simply treat the numeric values as
>> nominal. It would also be nice with more than one dimension of
>> classes per classifier, i.e. rows and columns.
>>
>> How about that? Or is this outside the indended scope of C4J?
>> Perhaps I should make my own facade that handles both Weka and
>> C4J in a simple way?
>>
>
> I'm quite interested in this, but I have to admit I don't
> understand the distinction between numeric & nominal values. Can
> you explain this some (to save me some googling-time...)?
Very short: nominal values are strings. Numeric values are integer/
floating point values.
They are both classes, but numerical values are easier to bend in
either direction than a nominal value.
--
karl
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