[scikit-learn] Terminating a Pipeline with a NearestNeighbors search

[Ryan Conway]

Hello,

I'm wondering if sklearn provides a means of terminating pipelines with a
NearestNeighbors search.

For example, my workflow is DictVectorizer -> TfidfTransformer ->
NearestNeighbors. I'd like to capture this in an sklearn Pipeline.
Unfortunately, Pipeline does not expose a kneighbors() method that would
run all intermediate transforms and then return the result of
NearestNeighbors.kneighbors().

I went through Pipeline's source and noticed its decision_function(),
predict() etc. all capture this functionality with different terminating
operation names. Maybe there is some way to specify the terminating
operation method name rather than relying on these Pipeline methods?

Thank you,
Ryan
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/scikit-learn/attachments/20170912/2f827b26/attachment.html>