官术网_书友最值得收藏!

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: "The rsample library incorporates this dataset, and we can make use of this dataset directly from the library."

A block of code is set as follows:

setwd("~/Desktop/chapter 2") 
library(rsample)
data(attrition)
str(attrition)
mydata<-attrition

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

[default]
exten => s,1,Dial(Zap/1|30)
exten => s,2,Voicemail(u100)
exten => s,102,Voicemail(b100)
exten => i,1,Voicemail(s0)

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: "You may recollect the Customers Who Bought This Item Also Bought This heading on Amazon (or any e-commerce site) where recommendations are shown."

Warnings or important notes appear like this.
Tips and tricks appear like this.
主站蜘蛛池模板: 铁岭市| 江门市| 汽车| 清河县| 合阳县| 山阴县| 宝坻区| 莒南县| 沧州市| 灌阳县| 灵丘县| 南溪县| 哈巴河县| 宁远县| 鄂伦春自治旗| 绵阳市| 舟曲县| 白银市| 麻栗坡县| 和田市| 济南市| 土默特右旗| 武城县| 视频| 台东县| 兰考县| 大同县| 叙永县| 长子县| 阿图什市| 喜德县| 轮台县| 洛阳市| 太康县| 祁东县| 德安县| 宁乡县| 尉犁县| 北辰区| 准格尔旗| 漳浦县|