官术网_书友最值得收藏!

Conventions

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: "The plot() function is one of most powerful functions in base R."

A block of code is set as follows:

> str(lesmiserables)
'data.frame':  254 obs. of  2 variables:
 $ V1: Factor w/ 73 levels "Anzelma","Babet",..: 61 49 55 55 21 33 12 23 20 62 ...
 $ V2: Factor w/ 49 levels "Babet","Bahorel",..: 42 42 42 36 42 42 42 42 42 42 ...

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

install.packages("linkcomm")
library(linkcomm)

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "In order to embed your Sankey diagram, you can leverage the RStudio Save as Web Page control from the Export menu."

Note

Warnings or important notes appear in a box like this.

Tip

Tips and tricks appear like this.

主站蜘蛛池模板: 温泉县| 邢台县| 浏阳市| 库伦旗| 萨嘎县| 宁陕县| 威宁| 天津市| 永安市| 兴山县| 宾阳县| 那曲县| 秭归县| 罗田县| 台江县| 无为县| 宣汉县| 工布江达县| 灵武市| 新余市| 浪卡子县| 克什克腾旗| 县级市| 贡嘎县| 阿克陶县| 桑植县| 常宁市| 宁化县| 兴宁市| 西峡县| 陇川县| 长阳| 河东区| 霍林郭勒市| 滁州市| 涞水县| 蕉岭县| 怀远县| 香格里拉县| 蕲春县| 灵丘县|