plot lines at 0,0 axis

"PaCo" == p connolly <p_connolly at slingshot.co.nz>
    on Tue, 17 Mar 2009 10:42:49 +1300 writes:

PaCo> Quoting Mohan Singh <Mohan.Singh at ucd.ie>:
    >> Hii
    >> 
    >> I am trying to plot lines at (0,0) axis where my scatterplot goes
    >> between positive n negative values for x and y axis
    >> 
    >> i can plot point using points(0,0) but if i want to draw lines
    >> along it, can't seem to get it right

    PaCo> ?abline

    PaCo> maybe abline(h = 0)
    PaCo>       abline(v = 0)

Yes.  And one  abline() call is sufficient :

 abline(h = 0, v = 0)

Martin Maechler, ETH Zurich