In programming sector we generally rely on google for syntex, logic and other support. Now for R language related problems you can search on http://rseek.org/
This site’s mission is to analyze the world of analytics, with a special focus on R. R is free, open source, analytic software that is similar to the “big three” commercial packages: SAS, SPSS and Stata.
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I generally prefer online books, and found this book very informative and helpful for bioinformatician http://books.sysadmins.su/oldlib/Programming/Perl/Bioinformatics%20Biocomputing%20and%20Perl%20-%20Wiley%202004.pdf
Perl has come to cover many areas of IT and has been dubbed the 'glue' for that matter. Perl has also contributed to Biology, big time, it saved the human genome project and not only that, it has continued to be the mainstay of much bioinformatics...
BioJava provides analytical and statistical routines, parsers for common file formats and allows the manipulation of sequences and 3D structures. The goal of this bookmark is to provide useful links for bioinformatician.
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Memory efficient string containers, string matching algorithms, and other utilities, for fast manipulation of large biological sequences or sets of sequences. http://www.bioconductor.org/packages/2.12/bioc/html/Biostrings.html