[texhax] \sim symbol with text above it

[Peter Flom]

Hello

I am trying to typeset the \sim symbol (a tilde) with text ('iid')
directly above it.  I tried
\sim^{iid} but this makes a 'usual' superscript (that is, to the right
of the tilde)

Thanks in advance

Peter

Peter L. Flom, PhD
Assistant Director, Statistics and Data Analysis Core
Center for Drug Use and HIV Research
National Development and Research Institutes
71 W. 23rd St
http://cduhr.ndri.org
www.peterflom.com
New York, NY 10010
(212) 845-4485 (voice)
(917) 438-0894 (fax)