2-GettingStartedWithR

Other arguments are op1onal they have default values

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Unformatted text preview: redundancy (and mistakes) Rules for Variable Names •  Variable names must follow some rules –  May not start with a digit or underscore (_) –  May contain numbers, characters, and some punctua1on - period and underscore are ok, but most others are not –  Case- sensi1ve, so x and X are different •  Advice on variable names: –  Use meaningful names –  Avoid names that have meaning in R, e.g., func1on names. If in doubt, check: > exists("pi")! [1] TRUE! Func1on Style Expressions Func1on Style Expressions •  Func1ons contain code (expressions) that perform a specific task. The Inputs are called arguments The...
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This document was uploaded on 02/16/2014 for the course STATISTICS 3026 at Columbia.

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