persp() function question

["Cande V. Ananth" <ananthcv@epi.umdnj.edu>]

Splus users:

    I need to plot one axis on a log-scale while using the persp()
    function. My code is: persp(fgr$x,fgr$y,fgr). I tried using
    the log() function within persp(), but I get an error message.
    I need to plot the z-axis on a log-scale (but am not interested
    in plotting log(z)).

    I'm running S-Plus 3.4 on the UNIX, Sun Os. Any help will be
    much appreciated.

cheers,
ananth