Which RDMS or NOSQL database do you use for R? MySQL, Cassandra,  HBase, MongoDB, Oracle, PostgreSQL, CouchDB, SQLite? This R survey is kind of important. It will show a few things: Which R most users use regardless if they are …

How to build Beowulf cluster aks HPC for Open MPI C++ apps like HFT with R with RCPP RInside  package on Debian Linux #rstats #linux Install Debian Etch from: and follow first CD install instructions: http://www.debian.org/CD/http-ftp/ Install Debian Virtual Machines …

Youtube video demo of C++ calling RInside and RCpp with Performance Analytics R package in Ubuntu Linux #linux #cpp #rstats Join my newsletter to get more gold nuggets like this Get our FREE Open Source Historical Database by answering the …

This site is easily the most advanced source examples I have seen for HFT with Python, C++, Java, and R with this RCpp package http://dirk.eddelbuettel.com/code/rcpp.html I need to say as a community of people thanking Dirk for maitaining this amazing …

Youtube video demo on NOSQL Redis on Windows and Linux clusterto parallelize with R and doRedis package http://quantlabs.net/r-blog/2012/07/will-microsoft-opentech-put-redis-into-1-status-for-in-memory-nosql-database-for-linux-window-and-mac-os-x/ Get our FREE Open Source Historical Database by answering the 2 WORLD’S FASTEST TRADER/QUANT QUESTIONS

Is Open Gamma a FREE R package for Risk Management and Front Office applications? Is this it? http://developers.opengamma.com/downloads/platform-1.0.0 Hi Bryan, Hope you are doing Well. I have a query How to install “Open Gamma” Package In R.am I looking a …

Why you will never see an R script coder package converter to C or C++ like Matlab Coder Toolbox From a commenter at http://quantlabs.net/r-blog/2012/06/the-huge-edge-of-matlab-over-r-is-the-matlab-coder-toolbox-converting-r-script-code-to-cc/   Very solid reason! Don’t hold your breath for an R to C convertor. The MATLAB …

Which R package for Estimating sample size for regression problems Hello. I am currently taking an online short course that attempts to estimate the sample size. Currently I am trying to estimate the sample size for simple linear regression and …

Is this the best way to integrate R to Excel ? RExcel package?   = In case you wish to read (write) excel spreadsheets into (from) R, you can use the ‘xlsReadWrite’ package. For further applications and information, you are …

Solution for FinancialInstrument R package: object ‘.instrument’ not found If you get get error message of from FinancialInstrument: object ‘.instrument’ not found ltportfolio=’longtrend’ > ltaccount=’longtrend’ > initPortf(ltportfolio,’GSPC’, initDate=initDate) Error in exists(paste(“portfolio”, name, sep = “.”), envir = .blotter,  :  object …