This is two years out-of-date.
-levels- is an official Stata command in Stata 8
as of 18 April 2003.
-levelsof- is the corresponding official Stata command
in Stata 9.
In Stata 9, -levels- still exists but is now
undocumented.
The original questioner evidently hasn't -updated-
and/or is using an older version of Stata. The
FAQ makes plain that you should tell us about any
non-current version of Stata (< 9) you are using.
Nick
[email protected]
Dev Vencappa
> I am sorry I forgot to mention it but levels is a user
> written command that you will need to download.
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
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