panelize: Tabset Code Cells in Quarto

The quarto-panelize extension allows you to tabbify existing code cells to show their source or add interactivity.

Installation

To install the quarto-panelize extension, follow these steps:

1. Enter a Quarto project.

2. Open your terminal inside the Quarto project.

3. Run the following command:

quarto add coatless-quarto/panelize

If you wish to make your code interactive, please install the following Quarto extensions:

# For Python
quarto add coatless-quarto/pyodide

# For R
quarto add coatless/quarto-webr

These commands will download and install the extension as well as any dependencies under the _extensions subdirectory of your Quarto project. If you are using version control, ensure that you include this directory in your repository.

Usage

For each document, place the panelize filter in the document's header:

filters:
  - panelize

Then, wrap existing R or Python code cells using a Div and specify the a panelize class. Supported options include:

Class	Description
.to-source	Convert a code cell to show rendered output and its source.
.to-pyodide	Convert code cell from static Python code to interactive Python code using Pyodide.
.to-webr	Convert code cell from static R code to interactive R code using webR.

Display Source

For example, if we have a code cell with R that we want to show its options, then we use:

:::{.to-source}
```{r}
#| echo: fenced
#| eval: true
1 + 1
```
:::

This will generate output equivalent to:

:::{.panel-tabset}
### Results
```{r}
#| eval: true
1 + 1
```
### Source
```{{r}}
#| eval: true
1 + 1
```
:::

Interactivity

For creating a tabset that contains both rendered results and interactive option, modify the document header and place the desired extension filter after panelize, e.g.

filters:
  - panelize
  - pyodide
  - webr

Important

Order matters! Please make sure to place the filters after panelize. Otherwise, the interactivity filter will not detect the code cell!

Next, wrap the existing code cell using a Div with a class of either .to-pyodide or .to-webr.

For Python, that looks like:

:::{.to-pyodide}
```{python}
4 + 5
```
:::

For R, that looks like:

:::{.to-webr}
```{r}
1 + 1
```
:::

Acknowledgements

Thanks to @mcanouil and @cscheid who provided great insight into approaching this problem by re-orienting it in a way that is more managable. Please see the full discussion.