st: computing confidence intervals of predicted values with postgr

["Halim, Nafisa" <nhalim@emory.edu>]

Dear Statalist members:
I want to compute predict values and their confidence intervals while letting the key explanatory variable and its quadratic term vary and holding the rest at their means.  I see postgr3 command computes the predicted values
with a version of the following:
postgr3  VAR, asis(VAR VAR-sq) predict(xb) generate(varname)
Is there a way to compute confidence intervals for these predicted values?
Many thanks in advance!
Nafisa

This e-mail message (including any attachments) is for the sole use of
the intended recipient(s) and may contain confidential and privileged
information.  If the reader of this message is not the intended
recipient, you are hereby notified that any dissemination, distribution
or copying of this message (including any attachments) is strictly
prohibited.

If you have received this message in error, please contact
the sender by reply e-mail message and destroy all copies of the
original message (including attachments).

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/