Zarr data types

This class implements a Zarr data type as an extension point. This class also manages the "fill_value" attribute associated with the data type.

Super class

zarr::zarr_extension -> zarr_data_type

Active bindings

data_type

The data type for the Zarr array, a single character string. Setting the data type will also set the fill value to its default value.

Rtype

(read-only) The R data type corresponding to the Zarr data type.

signed

(read-only) Flag that indicates if the Zarr data type is signed or not.

size

(read-only) The size of the data type, in bytes.

fill_value

The fill value for the Zarr array, a single value that agrees with the range of the data_type.

Methods

Public methods

• zarr_data_type$new()

• zarr_data_type$print()

• zarr_data_type$metadata_fragment()

---

Method new()

Create a new data type object.

Usage

zarr_data_type$new(data_type, fill_value = NULL)

Arguments

data_type

The name of the data type, a single character string.

fill_value

Optionally, the fill value for the data type.

Returns

An instance of this class.

---

Method print()

Print a summary of the data type to the console.

Usage

zarr_data_type$print()

---

Method metadata_fragment()

Return the metadata fragment for this data type and its fill value.

Usage

zarr_data_type$metadata_fragment()

Returns

A list with the metadata fragment.