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: "Similarly, for the second sample, (a "0"), we run:"

A block of code is set as follows:

> for (i in 1:16) {
+ outputData <- as.array
(executor$ref.outputs$activation15_output)[,,i,1]
+ image(outputData, xaxt='n', yaxt='n',
col=grey.colors(255)
+ )
+ }

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

library(R6)
logit <- function(x){
 1/(1+exp(-x))
}

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: "Once logged in, click on Create New App."