grid.pack() and packGrob
functions. They can be used to place objects within the existing
rows and columns of a frame layout. They do not provide the ability to
add new rows and columns nor do they affect the
heights and widths of the rows and columns.
grid.place(gPath, grob, row = 1, col = 1, redraw = TRUE)
placeGrob(frame, grob, row = NULL, col = NULL)frame, typically the output
from a call to grid.frame. grob. The object to be
placed. placeGrob returns a frame grob, but grid.place returns
NULL.
placeGrob modifies the given frame grob and returns the modified
frame grob. grid.place destructively modifies a frame grob on the display
list (and redraws the display list if redraw is TRUE).
grid.frame,
grid.pack,
grid.edit, and gPath.