January 11, 2012
Moderate. I have been using R for 3 years now. I migrated from Matlab and C/C++.
Pretty much anything that can help productivity and increase my R skills. To name few: S4, Rcpp (C++/C and R integration) and the use of R for financial applications.
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Increase R programming (and programming in general) skill level.
I am a quantitative analyst for a hedge fund. I use R to help develop and study systematic trading rules.