The work of data analysts is more than putting data into models and drawing some conclusions. We usually need to go through a complete workflow from data collecting, to data cleaning, visualization, modeling, and finally writing a report or making a presentation.
In the previous chapters, we improved our productivity by learning the R programming language from different aspects. In this chapter, we will further boost our productivity by focusing on the final step: reporting and presentation. In the following sections, we'll learn a very simple language to write documents: markdown.
Throughout this book, we have already learned a bunch of languages. These languages are very different and may confuse beginners. But if you keep in mind their purposes, it won't be hard to use them together. Before learning markdown, we'll take a quick review of the languages we learned in the previous chapters.
The first is, of course, the R programming language...
