By Alain F. Zuur, Elena N. Ieno, Erik H. W. G. Meesters

ISBN-10: 0387938370

ISBN-13: 9780387938370

In keeping with their broad adventure with educating R and data to utilized scientists, the authors offer a beginner's advisor to R. to prevent the trouble of training R and records whilst, statistical tools are saved to a minimal. The textual content covers easy methods to obtain and set up R, import and deal with facts, undemanding plotting, an creation to services, complicated plotting, and customary newbie errors. This e-book includes every little thing you want to comprehend to start with R.

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Extra resources for A Beginner's Guide to R (Use R!)

Sample text

We can also use the c function 38 2 Getting Data into R to access nonsequential rows or columns of Z. D contains the first, third, and fourth columns of Z, and E contains all but the first and third. You must ensure that the subscripts do not go outside the range of allowable values. For example, Z [8, 4] is valid, but Z [9, 5], Z [8, 6], or Z [10, 20] are not defined (we only have 8 birds and 4 variables). If you type one of these commands, R will give the error message: Error: subscript out of bounds If you would like to know the dimensions of Z, use: > dim(Z) [1] 8 4 The output is a vector with two elements: the number of rows and the number of columns of Z.

If you use R on a university network, installing R will have been carried out by the IT people, and you probably have only the base version. The base version contains the most common packages. To see which packages you have, click Packages -> Load package (Fig. 5). There are literally hundreds of user-contributed packages that are not part of the base installation, most of which are available on the R website. Many packages are available that will allow you to execute the same statistical calculations as commercial packages.

The reference for R itself is: R Development Core Team (2008). Note that some references may differ depending on the version of R used. 13 Which R Functions Did We Learn? We conclude each chapter with a section in which we repeat the R functions that were introduced in the chapter. In this chapter, we only learned a few commands. We do not repeat the functions for the bioluminescent lattice plot and the penguin plot here, as these were used only for illustration. 1. 1 R functions introduced in Chapter 1 Purpose Example ?