R for Beginners

1 Preamble......Page 5 2 A few concepts before starting......Page 6 2.1 How R works......Page 7 2.2 Creating, listing and deleting the objects in memory......Page 9 2.3 The on-line help......Page 11 3 Data with R......Page 12 3.1 Objects......Page 13 3.2 Reading data in a file......Page 15 3.3 Saving data......Page 18 3.4.1 Regular sequences......Page 19 3.4.2 Random sequences......Page 21 3.5.1 Creating objects......Page 22 3.5.2 Converting objects......Page 27 3.5.3 Operators......Page 29 3.5.4 Accessing the values of an object: the indexing system......Page 30 3.5.5 Accessing the values of an object with names......Page 33 3.5.7 Arithmetics and simple functions......Page 35 3.5.8 Matrix computation......Page 37 4 Graphics with R......Page 39 4.1.1 Opening several graphical devices......Page 40 4.1.2 Partitioning a graphic......Page 41 4.2 Graphical functions......Page 44 4.3 Low-level plotting commands......Page 45 4.4 Graphical parameters......Page 47 4.5 A practical example......Page 48 4.6 The grid and lattice packages......Page 52 5.1 A simple example of analysis of variance......Page 59 5.2 Formulae......Page 60 5.3 Generic functions......Page 62 5.4 Packages......Page 65 6 Programming with R in pratice......Page 67 6.1 Loops and vectorization......Page 68 6.2 Writing a program in R......Page 70 6.3 Writing your own functions......Page 71 7 Literature on R......Page 74