Code Cell Options

The following code cell options can be used in webr or pyodide blocks, or set for an entire document using the cell-options key in the document YAML options.

Interactive code blocks

Option	Default	Description
`autorun`	`true`	Evaluate initial code block contents automatically?
`caption`	None	Heading text for code editor block.
`completion`	`false`	Show code completion and suggestions in editor?
`echo`	`false`	Show source code in output display?
`edit`	`true`	Show the code editor? If `false`, a read-only code block is shown.
`envir`	`"global"`	Label for execution environment.
`error`	`true`	Continue execution after an error?
`eval`	`true`	Evaluate code using WebAssembly engine?
`fig-width`	`7`	Width of graphics output in “inches”.
`fig-height`	`5`	Height of graphics output in “inches”.
`fig-dpi`	`5`	DPI of graphics output (Pyodide only).
`include`	`true`	Include this code block in the document?
`persist`	`false`	Persist changes in the editor to browser’s local storage?
`output`	`true`	Display execution output in the document?
`runbutton`	`true`	Show the “Run Code” button? If `false`, code is immediately evaluated.
`startover`	`true`	Show the “Start Over” button?
`timelimit`	`30`	Execution time limit in seconds.
`warning`	`true`	Show warning messages?
`min-lines`	`0`	Minimum editor height in number of lines.
`max-lines`	`Infinity`	Maximum editor height in number of lines.

Exercises

Option	Default	Description
`check`	`false`	Create exercise grading algorithm.
`exercise`	None	Exercise label.
`hint`	`false`	Create exercise hint block.
`setup`	`false`	Create exercise setup block.
`solution`	`false`	Create exercise solution block.