Make a copy of an environment with just the selected objects.

Make a copy of an environment with just the selected objects.

Usage

trim_env(object, keep = NULL, ...)

# S3 method for class 'environment'
trim_env(object, keep = NULL, ...)

# Default S3 method
trim_env(object, keep = NULL, ...)

Arguments

object

An environment or an object with environment() and environment()<- methods.

keep

A character vector giving names of variables in the environment (including its ancestors) to copy over, defaulting to dropping all. Variables that cannot be resolved are silently ignored.

...

Additional arguments, passed on to lower-level methods.

Value

An object of the same type as object, with updated environment. If keep is empty, the environment is baseenv(); if not empty, it's a new environment with baseenv() as parent.

Methods (by class)

• trim_env(environment): A method for environment objects.

• trim_env(default): Default method, for objects such as formula and function that have environment() and environment()<- methods.