Subsampling many data structures at once

[tramuntanal]

Hi,

In python's scikit-learng there's a resample util to subsample the same random elements in many data structures at once, i.e. extract the same random indexes from the data structures: http://scikit-learn.org/stable/modules/generated/sklearn.utils.resample.html#sklearn.utils.resample

Is there some equivalent in Daru or one library that can be used for this purpose?

[zverok]

Unfortunately, Daru is not that mature to the moment :(

[tramuntanal]

I'm doing a mini Deep Neural Nework framework in Ruby to learn how this frameworks work. I have implemented a Resampler just for my needs:

• https://github.com/tramuntanal/MiniFlowRb/blob/master/lib/mini_flow/resampler.rb
• And the corresponding spec: https://github.com/tramuntanal/MiniFlowRb/blob/master/spec/mini_flow/resampler_spec.rb

Do you think that an evolution of this may be merged into Daru? I'd be glad to do the work following your guide if you feel it can be useful.