Learn ggplot2 in R for Data Visualization

在本课程中，我将教您如何使用 R 的 ggplot2 包绘制惊人的图表，这些图表能够以最优美、最专业的方式传达您的数据所要表达的内容。

目前，ggplot2 是构建专业图形最强大的工具。首先，因为这是 R 中可用的包，R 是数据科学和相关领域最常用的编程语言之一。因此，能够在您已经完成所有计算的同一环境中生成图形非常方便。其次，因为它是构建图形最灵活的工具。因此，即使您不使用 R 进行分析，使用 ggplot2 绘制绘图也是值得的，因为没有其他工具可以为您提供使用 ggplot2 可以获得的结果。

目前，数据可视化的顶级机构正在使用 ggplot2 来呈现他们的数据。但是，ggplot2 仍然是一个不是每个人都知道如何使用的工具，因为它的学习曲线很长。因此，有些人转向其他工具，例如 Microsoft Excel，该工具并非真正用于数据可视化目的。那么，您为什么不抓住现在学习 ggplot2 并从人群中脱颖而出的绝佳机会呢？

几年前开始学习 ggplot2 的时候，函数和参数的数量让我有点不知所措，而且我当时从未使用过 R。但我知道那里没有任何其他可比的工具。所以，我决定从理由中学习它，这花了我一段时间！当然，您可以观看一些教程，并学习如何绘制某些类型的图，但我很快意识到这还不足以独立、自信地使用 ggplot。我今天提供给你的这门课程是我在学习 ggplot2 时希望已经存在的课程。它可以为我节省数小时的阅读书籍、手册、文档以及无休止的反复试验。

在这门课程中，我遵循了一种方法，多年来我在大学里的学生被证明是有效的，那就是：要真正掌握 ggplot2，你需要学习它的核心：图形语法。但是，单独学习这个可能有点困难，所以我创建了一系列课程，首先涵盖语法的某个部分，然后我们继续学习如何绘制特定的情节。这两种类型的课程都是完全动手的，所以你一秒钟都不会觉得无聊！

Data Viz is essential for data analysis and data science, so become an expert in ggplot from scratch!

MP4 | Video: h264, 1280×720 | Audio: AAC, 44.1 KHz, 2 Ch
Genre: eLearning | Language: English + srt | Duration: 87 lectures (10h 30m) | Size: 3.36 GB

What you’ll learn:
How to use ggplot2 from scratch
How to produce publication-ready plots in seconds
Gain an understanding of the grammar of graphics, the theory behind ggplot2
Learn the basics of R that you need to start plotting
Learn why ggplot2 is the current best option for Data Visualization
Learn the structure of a plot in ggplot and its components
Learn how to use the different ggplot geometries
Learn how to import data into ggplot correctly
Learn how to do statistical transformations on your data before plotting
Learn how to use the different position adjustments in ggplot
Learn how to use scales properly: color, position, date and other
Learn how to use scales in manual and identity mode
Learn the different coordinate systems and how to apply them
Learn how to draw small multiples in ggplot using the faceting system
Learn how to customize the appearance of your plot using the theme system
Learn how to draw basic plots, like scatter plots, line plots, or bar charts
Learn how to display distributions: e.g. histograms, density plots, boxplots, violin plots
Learn how to draw maps: from background maps to annotated choropleth maps
Learn how to draw your own custom plots: e.g. lollipop plots, dumbbell plots
Learn how to make highlighted faceted charts
Learn how to make any plot look professional
(Don’t tell anyone, but you’ll also learn how to draw pie charts)

Requirements
No previous experience with ggplot2 is required
No previous experience with R is required, a crash course on R is offered at the beginning
Basic knowledge of using any programming language

Description
Hi, my name is Clara and I am a Complex Systems researcher and Data Visualization professor at the University.

In this course, I’m going to teach you how to use the ggplot2 package of R to draw amazing charts that are able to communicate what your data has to say in the most polished, professional way.

Currently, ggplot2 is the most powerful tool for building professional graphics. First, because this is a package available in R, which is one of the most used programming languages for Data Science and related fields. So, it is very convenient to be able to produce graphics in the same environment where you already do all of your calculations. Second, because it is the most flexible tool to build graphs. So, even if you don’t use R for your analyses, it is worth it to use ggplot2 to draw your plots, because there’s no other tool that will give you the results that you can achieve using ggplot2.

Right now, the top agencies for Data Visualization are using ggplot2 to present their data. But still, ggplot2 is a tool that not everybody knows how to use, because of its long learning curve. Because of this, some people turn to other tools, like for example, Microsoft Excel, a tool that is not genuinely made for Data Visualization purposes. So, why don’t you take the amazing opportunity of learning ggplot2 now and standing out from the crowd?

When I started learning ggplot2 some years ago, I was a bit overwhelmed by the amount of functions and parameters, and also, I had never used R at the time. But I knew there wasn’t any other comparable tool out there. So, I decided to learn it from the grounds, which took me a while! Of course you can watch some tutorials, and learn how to do certain kinds of plots, but I soon realized this wasn’t enough to use ggplot in an independent, confindent manner. This course that I’m offering to you today is the course that I wished had existed when I was learning ggplot2. It would have saved me hours and hours of reading books, manuals, the documentation, and endless trial and error.

In this course I’ve followed a methodology that has proven to work over the years with my students at the University, which is: to truly master ggplot2 you need to learn its core: the grammar of graphics. But, learning this alone might be a little tough, so I’ve created a series of lessons that first cover a certain part of the grammar, and then we move on to learning how to draw particular plots. Both of these types of lessons are fully hands-on, so you won’t be bored one second!

I really encourage you to make the decision of starting to learn ggplot2, it’ll be a skill that you’ll use for years to come and which will make a great difference in your career. I promise you won’t regret it.

*This course covers the ggplot2 3.3.0 version (the latest release).

Who this course is for
Any person who wants to learn how to use ggplot2 from a grounded perspective
Data Scientists interested in learning the current cutting-edge tool for Data Visualization
Scientists/researchers that need to present complex data beautifully
Data Analysts that need to plot and communicate data at some point
Data Journalists that want to learn how to plot data
UI/UX designers that want to learn how to use ggplot for showing data