[R] Error in terms.default()

[Daniel A. Powers]

R-list --

I am working with some SPlus code and get the following error

Error in terms.default(formula, data = data) :
        no terms component

Can someone point me to a fix? The pasted formula looks ok
when printed during the procedure.

Thanks,
Dan

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Daniel A. Powers, Ph.D.
Associate Professor of Sociology
University of Texas at Austin
370 Burdine
Austin, TX  78712
phone: 512-232-6335
fax:   512-471-1748
dpowers at mail.la.utexas.edu