Create a demo Zarr group containing R's volcano dataset

Writes the volcano matrix into a temporary DirectoryStore as a Zarr array named "volcano" and returns the opened group.

Usage

zarr_volcano()

Value

A ZarrGroup containing a single array called "volcano".

Examples

g <- zarr_volcano()
v <- g$get_item("volcano")
image(v$get_item("...")$data, main = "Maunga Whau Volcano")