Attach the members of an Object to the R search path.
If trying to attach the same Object twice without detaching it in between,
a warning
will be generated and nothing will be done.
# S3 method for Object
attach(this, private=FALSE, pos=2, ...)
If TRUE
, private fields will also be attached,
otherwise not.
The position at in search path where the Object should be inserted.
Not used.
Henrik Bengtsson