[Pmw] reusing a graph after deleting a curve

[giacomo boffi]

my question: is it possible to erase a graph, and reuse it?

like in

# x -> compute -> y
g=Pmw.Blt.Graph(); g.pack()
g.line_create(name,x,y)
# other computing -> a better y
# do something to g, erasing the previous plot
#    [the above is the part that i cannot understand...]
g.line_create(name,x,y)

-- 
Lovercraft, bestia.                                -- Whip,    in IFQ