is.global | R Documentation |
A logical test to determine if the current environment is the global environment.
is.global(n = 1)
n |
The number of generations to go back. If used as a function argument n should be set to 2. |
A logical response.
Simon O'Hanlon and Tyler Rinker <tyler.rinker@gmail.com>
http://stackoverflow.com/questions/18637656/detect-if-environment-is-global-enviroment
globalenv
,
parent.frame
is.global()
lapply(1:3, function(i) is.global())
FUN <- function() is.global(); FUN()
FUN2 <- function(x = is.global(2)) x
FUN2()
FUN3 <- function() FUN2(); FUN3()
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