Column Information for Backend — col_info • mlr3

Collects column information for backend.

Currently, this includes:

storage type
levels (factor / ordered), but not for the primary key column

Usage

col_info(x, ...)

# S3 method for class 'data.table'
col_info(x, primary_key = character(), ...)

# S3 method for class 'DataBackend'
col_info(x, ...)

Arguments

x: (any)
A backend-like object for which to retrieve column information.
...: (any)
Additional arguments.
primary_key: (character())
The primary key of the backend.