pos.to.env
Convert Positions in the Search Path to Environments
Returns the environment at a specified position in the search path.
- Keywords
- utilities
Usage
pos.to.env(x)
Arguments
- x
an integer between
1
andlength(search())
, the length of the search path, or-1
.
Details
Several R functions for manipulating objects in environments (such as
get
and ls
) allow specifying environments
via corresponding positions in the search path. pos.to.env
is
a convenience function for programmers which converts these positions
to corresponding environments; users will typically have no need for
it. It is primitive.
-1
is interpreted as the environment the function is called
from.
This is a primitive function.
Examples
library(base)
# NOT RUN {
pos.to.env(1) # R_GlobalEnv
# the next returns the base environment
pos.to.env(length(search()))
# }
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