[R] Random Projection

[Stefan Evert]

On 3 Oct 2013, at 22:39, "Monaghan, David" <DMonaghan at gc.cuny.edu> wrote:

> I was wondering, has anyone has encountered an R package that performs random projection/random mapping?  RP is a procedure that is akin to Principal Components Analysis in that it accomplishes dimensionality reduction, but is far more computationally efficient.  I have been searching for some time, but haven't seen anything on CRAN-r yet.  

The experimental "wordspace" package available from R-Forge has an implementation of RI in the dsm.projection() function.  See

	https://r-forge.r-project.org/R/?group_id=783

for download / installation.

Best,
Stefan