user2149631 user2149631 - 12 days ago 7
R Question

Any R package for dimension reduction using random projection?

I have found a few random projection R packages, like


  1. MCLUST: https://cran.r-project.org/web/packages/mclust/index.html

  2. RPEnsemble: https://cran.r-project.org/web/packages/RPEnsemble/index.html



But, it seems that they don't support random projection for dimension reduction. I have limited knowledge about random projection, but I found two functions in sklearn support this:

Gaussian random projection and Sparse random projection:
http://scikit-learn.org/stable/modules/random_projection.html

And it has pretty simple function interface. Are there any similar functions to do dimension reduction with Random Projection in R?

Answer

I concur that the RPEnsemble package doesn't seem to expose the low-level methods that would allow you to use only that feature in any convenient form.

I did however come across this R source code which seems fairly straight-forward and reasonably documented: R source code for random projections. This is part of the clusterv package and you can download it there.

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