Please see my website http://carlosandrade.co for or my curriculum there for a description.
Q&A for statisticians, data analysts, data miners and data visualization experts
Q&A for professional programmers interested in conceptual questions about software development
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Q&A for users of TeX, LaTeX, ConTeXt, and related typesetting systems
Stack Exchange Network staging zone, where users come together to build new Q&A sites
Q&A for computer enthusiasts and power users
Q&A for theoretical computer scientists and researchers in related fields
Q&A for Ubuntu users and developers
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems.
Q&A for power users of Apple hardware and software
Q&A for database professionals who wish to improve their database skills and learn from others in the community
Q&A for peer programmer code reviews