Easier package loading / auto-installation

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Description

needs is a simple R function to make package loading / installation hassle-free — use it in place of library to attach packages and automatically install any that are missing. You can also supply a minimum version number, and it will update old packages as needed. No more changing your code to reinstall packages every time you update R — needs does it for you.

Author(s)

Josh Katz

References

Source repo: http://www.github.com/joshkatz/needs