handle
. These objects are
used in referring to objects where the actual data is hidden somehow.
They are used in dealing with external subprocesses from S.
print.handle(x, ...)
handle
object
x
with the invisible flag set to prevent reprinting
A
handle
can be viewed as an "opaque" data type. Part of the intent is
to hide the underlying data from prying eyes. Reasons for hiding the data
might be that is hard to represent in S-PLUS (so it is maintained in some
object code loaded into S-PLUS) or that it might vary depending on the
platform or to protect it from user modification.
myHandle <- handle ("myData") myHandle # Produces the following output Handle 816557652 type = myData : Valid Inuse