R into stata

What is to command to change a dataset in R format "X.RData" into stata
format "X.dta"?

Thank you,


----------------------------------------------------------------------------
---------------
Emre ?zaltin
Epidemiologist
Harvard Initiative for Global Health (HIGH)
104 Mt. Auburn St. 02138 Cambridge, MA
tel:      1 (617) 495-4884
fax:     1 (617) 495-8231
email:  eozaltin at camail.harvard.edu