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Re: st: superposed rolled windows

From   "irodriguez" <>
Subject   Re: st: superposed rolled windows
Date   Tue, 27 Jun 2006 13:14:01 -0300

When I try 
. tsset empresa ao 
stata say 
varlist:  empresa:  string variable not allowed
I have tried with destring command but I don`t know why the data are still 
Someone can help me with this
Thanks a lot

-----Original Message-----
From: "Michael S. Hanson" <>
Date: Tue, 27 Jun 2006 12:01:34 -0400
Subject: Re: st: superposed rolled windows

> On Jun 27, 2006, at 11:00 AM, Jeph Herrin wrote:
> > Never mind, I figured out "F".  Funny that it isn't even
> > mentioned on the time series functions page.
>    That may be because it technically is not a function: it's an  
> operator.  See -help tsvarlist-.
>    I would agree that this information is not the easiest thing to find  
> if you aren't certain what you are looking for:  -hsearch time series  
> operators- (in Stata 9.2 or later) returns -tsvarlist- as the second  
> link, while -hsearch time series functions- doesn't give -tsvarlist-  
> until the 78th entry on my machine -- long after most people would  
> give up searching, I suspect.
>    I have observed over time (small pun intended) that many people  
> think of L., F., D., and S. as functions instead of operators, and  
> thus have trouble tracking down the information they need.  Note that  
> in -help time- it does say, "See -varlist- for a table of time-series  
> operators," but that sentence apparently is easy to miss.  Perhaps an  
> explicit mention of -tsvarlist- under "Data management tools and time- 
> series operators" on the -help time- page would, well, help.  A link  
> to -tsvarlist- in the Description paragraph of -help  
> time_series_operators- similarly might mitigate some of this  
> confusion.  HTH.
>                                          -- Mike
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