This help topic is for R version 2.9.0. For the current version of R, try https://stat.ethz.ch/R-manual/R-patched/library/base/html/ns-topenv.html
ns-topenv {base}R Documentation

Top Level Environment

Description

Finding the top level environment.

Usage

topenv(envir = parent.frame(),
       matchThisEnv = getOption("topLevelEnvironment"))

Arguments

envir

environment.

matchThisEnv

return this environment, if it matches before any other criterion is satisfied. The default, the option ‘topLevelEnvironment’, is set by sys.source, which treats a specific environment as the top level environment. Supplying the argument as NULL means it will never match.

Details

topenv returns the first top level environment found when searching envir and its parent environments. An environment is considered top level if it is the internal environment of a name space, a package environment in the search path, or .GlobalEnv.

Examples

topenv(.GlobalEnv)
topenv(new.env())

[Package base version 2.9.0 ]