[R] S-plus equivalent R command?

[Eric Jose Alfaro Martinez]

Hi, do you know what is the splus command equivalent to the R command 
contour(...,method = .flattest.) or contour(..., method = .edge.), thank 
you very much for your help, best regards...

-- 
Eric J. Alfaro
Escuela de Fisica
Universidad de Costa Rica
2060-Ciudad Universitaria Rodrigo Facio
San Jose, Costa Rica
fax: (506) 207-5619, 234-2703
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e-mail: ejalfaro at cariari.ucr.ac.cr
         ealfaro at cosmos.ucr.ac.cr, eric_alfaro at yahoo.com