R help - Oct 2013 - Random Projection

Hello:

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.


David Monaghan
Sociology Ph.D. Candidate, CUNY Graduate Center

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