Of course, "some feature = some value" can also be expressed as F(some
feature), so really, moving all of the feature transformation up front
should allow you to do everything you suggested. I understand the
convenience of using custom functions in some cases, but at least the
workaround here is quite simple.
On Mon, Jan 13, 2014 at 2:40 AM, Gilles Louppe <g.lou...@gmail.com> wrote:
> Dear Caleb,
>
> The current implementation does not allow for that. You can do as
> suggested by Lars though, if this is practical for you.
>
> Gilles
>
>
>
>
> On 12 January 2014 16:03, Caleb <cloverev...@yahoo.com> wrote:
>
>> Hi all,
>>
>> In the current implementation of the decision tree, data is split
>> according
>> to the criterion of the form:
>> some feature < some threshold
>>
>> Is there a way use more general form such as:
>> some feature = some value or
>> F(feature) < some threshold
>> where F is a function of the features.
>>
>> It would be best if I don't have to write the code from scratch and reuse
>> as much code in the library as possible.
>>
>> Thanks for any suggestion.
>>
>> Regards,
>> Caleb
>>
>>
>>
>>
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