"Functions. In previous chapters, we demonstrated how to enter data; read data
from a spreadsheet, ascii file, or a database; and extract subsets of data. In this
chapter, we discuss applying some simple functions to the data, such as the
mean or the mean of a single data subset. These are functions that may be useful
; however, they are not the tools that will convince you to become an R user. Use
them when it is convenient. Upon fi ..."
"Based on their extensive experience with teaching R and statistics to applied scientists, the authors provide a beginner's guide to R. To avoid the difficulty of teaching R and statistics at the same time, statistical methods are kept to a minimum. The text covers how to download and install R, import and manage data, elementary plotting, an introduction to functions, advanced plotting, and common beginner mistakes. This book contains e ..."
"This book contains everything you need to know to get started with R. “Its biggest advantage is that it aims only to teach R...It organizes R commands very efficiently, with much teaching guidance included."
Mit Herz und Seele Friedel Münch & Helmut Fath : die Geschiche einer besonderen Ära by ErikMeesters 368 Pages, Published 2013 ISBN-13: 978-90-821002-0-4, ISBN: 90-821002-0-7