Memory Allocated in S-PLUS Frames
DESCRIPTION:
Reports the number of bytes allocated for each S-PLUS frame.
USAGE: 
allocated()
VALUE:
vector showing the total amount of storage in bytes allocated in each frame. The names attribute gives the name of the function called in each frame.
SEE ALSO:
memory.size , storage , object.size .
EXAMPLES: 
# default allocations when called at top level, corresponding
# to the nesting of frames in .Program
allocated()
   Frame 1
     4090


function() {
        at.start <- allocated()
        # ... do some work ...
        now <- allocated()
        # changes in allocations
        now - at.start
}