R does not have S' concept of frame = 0
, aka ‘session
frame’. These two function were an attempt to provide a portable
way for working with frame 0, particularly when porting code
from S.
They have been deprecated since August 2013.
u.assign0(x, value, immediate = FALSE)
u.get0(x)
character string giving the name of the object.
any R object which is to be assigned.
logical, for S compatibility. No use in R.
Martin Maechler