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: "A variable representing the age of a girl called Huan (Age_Huan)."
A block of code is set as follows:
val dataFrame = spark.createDataFrame(result5).toDF(featureVector, speciesLabel)
When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:
sc.getConf.getAll
res4: Array[(String, String)] = Array((spark.repl.class.outputDir,C:\Users\Ilango\AppData\Local\Temp\spark-10e24781-9aa8-495c-a8cc-afe121f8252a\repl-c8ccc3f3-62ee-46c7-a1f8-d458019fa05f), (spark.app.name,Spark shell), (spark.sql.catalogImplementation,hive), (spark.driver.port,58009), (spark.debug.maxToStringFields,150),
Any command-line input or output is written as follows:
scala> val dataSetPath = "C:\\Users\\Ilango\\Documents\\Packt\\DevProjects\\Chapter2\\"
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."
Warnings or important notes appear like this.
Tips and tricks appear like this.