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Re: st: graph with indicator variables

From   Nick Cox <>
Subject   Re: st: graph with indicator variables
Date   Thu, 28 Feb 2013 18:20:48 +0000

Nahla's error with -stripplot- (SSC) was twofold.

stripplot S over(  T_1 T0 T1 )

won't work in the first instance because -over()- is an option, and as
Teodora indicates with her example you need a comma too.

Even with a comma, that wouldn't work because -over()- requires a
single variable name.


On Thu, Feb 28, 2013 at 5:19 PM, Tsankova, Teodora <> wrote:

> 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.

Nahla Betelmal

> 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);

On 28 February 2013 16:54, Tsankova, Teodora <> wrote:

>> I have actually done something similar or a time trend for event using
>> the -stripplot- command.
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