st: graph with indicator variables

["Tsankova, Teodora" <TsankovT@ebrd.com>]

What your command would basically do is produce three separate graphs of
S.

What I did with stripplot is make a simple time trend of events so my
command was:

Stripplot date, over(village)

This way I got time trends for events separate for every village (where
I knew what the three events represented for example).

Hope this helps but what you are trying to do might be different as
well. Stripplot allows to graph a single variable so in my case I have
no y.
 
You might try with tsline as well for plotting time series data.

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nahla
Betelmal
Sent: 28 February 2013 17:12
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: graph with indicator variables

Thanks Tsankova , but can you please give me more details. I tried
stripplot but I got an error message as below.


stripplot S over(  T_1 T0 T1 )
time-series operators not allowed
r(101);

Thanks again

Nahla

On 28 February 2013 16:54, Tsankova, Teodora <TsankovT@ebrd.com> wrote:
> I have actually done something similar or a time trend for event using

> the -stripplot- command.
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nahla 
> Betelmal
> Sent: 28 February 2013 16:50
> To: statalist@hsphsun2.harvard.edu
> Subject: st: graph with indicator variables
>
> Dear Statalist,
>
> I want to graph the trend of a numerical variable S around a certain 
> event for different  firms. For each firm the event occurs in a 
> different year, so I generated an indicator  variable equal 1 for the 
> event year in each firm and called it T0 which could be year 2003 for 
> firm 1 but year 2008 for firm 2 , etc. I also generated an indicator 
> variable for year T-1 which represents the year preceding the event 
> year for each firm (e.g. would be year 2002 for firm 1, but 2007 for 
> firm 2 ) , and variable year T+1 which represents the years following 
> the event year for each firm ( would be year 2004, but 2009 for firm 
> 2, etc.). I used lag and forward functions for T-1 and T+1.
>
>
> How can graph the trend of variable S around along variables : T0, 
> T-1,
> T+1. Is it possible to have  the S variable is on the Y-axis while
> X-axis represents T0, T-1, and T+1 in one graph, and how?
>
> Many thanks
>
> Nahla Betelmal
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