ggplot2 is a system for declaratively creating graphics, based on The Grammar of Graphics. You provide the data, tell ggplot2 how to map variables to aesthetics, what graphical primitives to use, and it …

A system for 'declaratively' creating graphics, based on "The Grammar of Graphics". You provide the data, tell 'ggplot2' how to map variables to aesthetics, what graphical primitives to use, and it takes …

ggplot2是一个基于图形语法的声明式创建图形的系统。 你提供数据，告诉ggplot2如何将变量映射到美学（aesthetic），使用什么图形原语，然后它负责处理细节。

本文内容基本是来源于STHDA，这是一份十分详细的 ggplot2 使用指南，因此我将其翻译成中文，一是有助于我自己学习理解，另外其他R语言爱好者或者 可视化 爱好者可以用来学习。

ggplot2 is a system for declaratively creating graphics, based on The Grammar of Graphics. You provide the data, tell ggplot2 how to map variables to aesthetics, what graphical primitives to use, and it …

This is the on-line version of work-in-progress 3rd edition of “ggplot2: elegant graphics for data analysis” published by Springer. You can learn what’s changed from the 2nd edition in the Preface.

ggplot2 是R语言最流行的第三方扩展包，是RStudio首席科学家Hadley Wickham读博期间的作品，是R相比其他语言一个独领风骚的特点。

ggplot2 is an R package for producing visualizations of data. Unlike many graphics packages, ggplot2 uses a conceptual framework based on the grammar of graphics. This allows you to ‘speak’ a graph …

ggplot2 在2005年由Weckham创建，可以替代 graphics 包，能够画出更多类型和更精美的图形。 近年来R语言迅速成长为第一统计软件的过程中，ggplot2 强大的画图功能起了不小的推动作用。

ggplot2 is a system for declaratively creating graphics, based on The Grammar of Graphics. You provide the data, tell ggplot2 how to map variables to aesthetics, what graphical primitives to use, and it …