In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.
Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "We used the
e1071 package to run SVM."
A block of code is set as follows:
vector_ratings <- factor(vector_ratings)qplot(vector_ratings) + ggtitle("Distribution of the ratings") exten => i,1,Voicemail(s0)
New terms and important words are shown in bold.
Warnings or important notes appear in a box like this.
Tips and tricks appear like this.