30-04-2021



An R Notebook is an R Markdown document with chunks that can be executed independently and interactively, with output visible immediately beneath the input. They are similar to R Markdown documents with the exception of results being displayed in the R Notebook creation/edit mode rather than in the rendered output. 3.5 R Markdown Notebooks. As mentioned in Section 2.2 of the R Markdown Definitive Guide (Xie, Allaire, and Grolemund 2018), there are several ways to compile an Rmd document. One of them is to use R Markdown Notebooks, with the output format htmlnotebook, e.g. Use a productive notebook interface to weave together narrative text and code to produce elegantly formatted output. Use multiple languages including R, Python, and SQL. R Markdown supports a reproducible workflow for dozens of static and dynamic output. R Markdown documents allow the integration of plain text, code, and output. This makes writing reports, sharing repro-ducibleanalysiscodewithcollaborators(includingoneofyourmaincollaborators,future you),orsimplyincludingnarrative toexplainthestepsinouranalysisstraightforward.

3.5 R Markdown Notebooks

As mentioned in Section 2.2 of the R Markdown Definitive Guide(Xie, Allaire, and Grolemund 2018), there are several ways to compile an Rmd document. One of them is to use R Markdown Notebooks, with the output format html_notebook, e.g.,

R Markdown NotebookR Markdown Notebook

When you use this output format in RStudio, the Knit button on the toolbar will become the Preview button.

R Markdown Download

R Markdown Notebook

R Markdown Notebook Themes

The main advantage of using notebooks is that you can work on an Rmd document iteratively in the same R session. You can run one code chunk at a time by clicking the green arrow button on each chunk, and you will see the text or plot output in the editor. When you click the Preview button on the toolbar, it only renders the Rmd document to an HTML output document containing the output of all code chunks that you have already executed. The Preview button does not execute any code chunks. By comparison, when you use other output formats and hit the Knit button, RStudio launches a new R session to compile the whole document (hence all code chunks are executed at once), which usually takes more time.

R Notebook Markdown Difference

Ipython notebook markdown

Jupiter Notebook Markdown Guide

If you do not like RStudio’s default behavior of showing the output of code chunks inline when you run them individually, you can uncheck the option “Show output inline for all R Markdown documents” from the menu Tools -> Global Options -> R Markdown. After that, when you run a code chunk, the output will be shown in the R console instead of inside the source editor. You can also set this option for an individual Rmd document in its YAML metadata: