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RE: st: ado file help


From   tashi lama <ltashi32@hotmail.com>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: ado file help
Date   Tue, 14 Aug 2012 15:40:00 +0000

in this code, 2 variables are created namely var1 and var2. So, I want to create a dataset using syntax options, which I did.  I would also like to have the flexibility of drawing graphs of the variables I want ( say for example tsline var1 or var2 or both)  or list the variables(say for example list var2 or var2 or both )  for that matter. What really sucks is syntax's limitation to only look backward. As I said, I could have syntax statement after creating dataset( and I am sure that wouldn't be that hard) but for this particular example, I need to define it before to create datasets on first place. 

Note: I am very careful to not use any abbreviation while posting ):  example for eg. 

Thanx
----------------------------------------
> Date: Tue, 14 Aug 2012 16:23:00 +0100
> Subject: Re: st: ado file help
> From: njcoxstata@gmail.com
> To: statalist@hsphsun2.harvard.edu
>
> Quite. -varname- or -varlist- in a -syntax- statement refers to an
> existing variable; if what you supply is not the name of an existing
> variable, that is an error. That will be inevitable if there are no
> data in memory.
>
> If you need to supply such a name, you must supply it in some other
> way. I thought that the main purpose of this program was to read in
> data and that -odbc- takes care of that for you.
>
> Nick
>
> On Tue, Aug 14, 2012 at 4:15 PM, tashi lama <ltashi32@hotmail.com> wrote:
> > Works like a magic. Thanx guys. There is a slight problem however. If I were to extend this and include varlist in the syntax,
> >
> > ......
> > syntax [varlist], STARTdate(str) ENDdate(str) BROKERid(numeric) GRAPHtype(str)
> > obdc load, exec("select date(read_date), count(*) from readership where source_id==`brokerid' and date(read_date) between '`startdate'' and '`enddate'' group by date(read_date)")
> > .......
> > end
> >
> > and when I call
> > dd var1, startdate("2011-01-01") enddate("2011-01-20") broker(6429)
> > stata isn't happy and returns "no variables defined". It makes kind of sense syntax command doesn't see any data since it is defined before generating dataset. However, I need to define syntax, options to generate dataset in first place. Any idea how to solve this?
> >
>
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