Chapter 4 Getting Started with R
"R" is an open source software program, developed by volunteers as a service to the community of scientists, researchers, and data analysts who use it. R is free to download and use. Lots of advice and guidance is available online to help users learn R, which is good because it is a powerful and complex program, in reality a full featured programming language dedicated to data.
Sources.
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http://dssm.unipa.it/R-php/R-php-1/R/ (UNIPA experimental web interface to R)
Test Yourself
R Functions Used in This Chapter
c() |
Concatenates data elements together |
<- |
Assignment arrow |
sum() |
Adds data elements |
range() |
Max value minus min value |
mean() |
The average |
