Are you confused with all these C++ and R math library options of RcppArmadillo, LAPACK, GSL, BLAS, MKL, Rcppaaaahhhhh!
To add to the confusion of various C++ libraries, there is another options for R users within their C++ code: RCppArmadillo.
Get more info here? http://dirk.eddelbuettel.com/code/rcpp.armadillo.html
Aaaarh! Which way to go? aarrhh!!!
I feel like this with all these option:
FACEBOOK ACCOUNT and TWITTER. Don't worry as I don't post stupid cat videos or what I eat!