Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "Mount the downloaded WebStorm-10*.dmg disk image file as another disk in your system."

A block of code is set as follows:

dfData <- read.csv(fileName)
nobs <- nrow(dfData)
train <- sample(nobs, 0.9*nobs)
test <- setdiff(seq_len(nobs), train)

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

> dfResults
        w stem stop  nb_acc svm_acc  nn_acc  rf_acc  best_acc
12 binary    1    1   86.06   95.24   90.52   94.26     95.24
9  binary    0    1   87.71   95.15   90.52   93.72     95.15
10 tfidf     1    1   91.99   95.15   91.05   94.17     95.15
3  binary    0    0   85.98   95.01   90.29   93.99     95.01

Any command-line input or output is written as follows:

$ tensorboard --logdir /tensorflow_logs

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."