Conventions

In this book, you will find a number of styles of text that distinguish between different kinds of information. Here are some examples of these styles, and an explanation of their meaning.

Code words in text are shown as follows: "Use runif to generate multiple random numbers uniformly between two numbers."

A block of code is set as follows:

runif(1, 2, 3)
runif(10, 5.0, 7.5)

New terms and important words are shown in bold. Words that you see on the screen, in menus or dialog boxes, for example, appear in the text like this: "The following screenshot shows an object browser window in Greenplum's pgAdminIII, a client tool to manage database elements".