Google RLint: Reformatting R Code to Follow the Google Style Guide - Manual (Page 19)

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Coding conventions and checkers
Coding conventions have existed for decades.
● 1918: The Elements of Style by Strunk & White (writing English)
● 1974: The Elements of Programming Style (writing code)
● 1997: Java code conventions
● 2001: Python style guide
● 2014: Google style guides for 12 languages available
Style checkers have existed for decades.
● 1977: lint checks C style
● 2002: PyChecker checks Python style
● 2011: gofmt reformats Go code
( 70% adoption in 2013)