[scikit-learn] Get parameters of classes in a Pipeline within cross_validate

[Roberto Guidotti]

Hi Chris,

Cool! I will try it very soon!!

Thank you
Roberto

On 2 April 2018 at 01:47, Chris Aridas <chris at aridas.eu> wrote:

> Hi Roberto,
>
> One option it could be to make a wrapper and serialize your pipeline in
> your wrapper's fit method.
> After the serialization you could load the pipeline anytime and inspect
> whatever you want.
> I have coded an example in the following gist.
>
> https://gist.github.com/chkoar/2993a6e3f6bae1887eabc3fa27bb06a6
>
> Best,
> Chris
>
>
> On Thu, Mar 29, 2018 at 12:16 PM, Roberto Guidotti <robbenson18 at gmail.com>
> wrote:
>
>> Hi scikit-learners,
>>
>> I have a simple Pipeline with Feature Selection and SVC classifier and I
>> use it in a cross validation schema with cross_validate /
>> cross_validation_score functions.
>> I need to extract the selected features for each fold of the CV and in
>> general get information about the fitted elements of the pipeline in each
>> of the CV fold.
>>
>> Is there a way to get these information (e.g. fs.get_support() or
>> fs.scores_) or I need to build my own cross_validate function?
>>
>> Thank you,
>> Roberto
>>
>> --
>> Ing. Roberto Guidotti, PhD.
>> PostDoc Fellow
>> Institute for Advanced Biomedical Technologies - ITAB
>> Department of Neuroscience and Imaging
>> University of Chieti "G. D'Annunzio"
>> Via dei Vestini, 33
>> 66013 Chieti, Italy
>> tel: +39 0871 3556919 <0871%20355%206919>
>> e-mail: r.guidotti at unich.it; rguidotti at acm.org
>> linkedin: http://it.linkedin.com/in/robertogui/
>> twitter: @robbisg
>> github: https://github.com/robbisg
>>
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>>
>
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-- 
Ing. Roberto Guidotti, PhD.
PostDoc Fellow
Institute for Advanced Biomedical Technologies - ITAB
Department of Neuroscience and Imaging
University of Chieti "G. D'Annunzio"
Via dei Vestini, 33
66013 Chieti, Italy
tel: +39 0871 3556919
e-mail: r.guidotti at unich.it; rguidotti at acm.org
linkedin: http://it.linkedin.com/in/robertogui/
twitter: @robbisg
github: https://github.com/robbisg
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