column-scope: Establish a Feature Columns Selection Scope
Description
This helper function provides a set of names to be
used by tidyselect helpers in e.g. feature_columns().
Usage
set_columns(columns)with_columns(columns, expr)
scoped_columns(columns)
Arguments
columns
Either a named R object (whose names will be
used to provide a selection context), or a character vector
of such names.
expr
An R expression, to be evaluated with the selection
context active.