Hello Statalist,
I have done a lot of reading on time-series with interventions, but have a
hard time interpreting the different situations and the specific translation
to Stata-language, so am looking for advice, guidance etc.
I have data on 5 subjects with data over time - every 5-15 mins I have data
point. There are a variety of parameters that I am looking at, hence the
data points.
I cause an intervention on one side - ie. Right or left, and then the other
side is my control- arbitrarily I have set my intervention to time = 0. The
nature of my intervention causes a transient response.
So, what I want to do is first see if I actually see a response to the
intervention. So, I start with:
tsset sub_num time
panel variable: sub_num, 1 to 5
time variable: time, -5 to 150, but with gaps
And then
Xtreg right_result intervention, re
Where right_result I the data for the right side and intervention is 0 if
time < 0 and intervention = 1 for time>0
Now, here come the questions:
It seems to me xtreg is the most straight forward time-series analysis for
panel data or am I simplifying something that I shouldn't be? - how do I
know?
For my results from a parameter that is not normal - is there an alternative
I can use?
Lastly - if I want to find out when the maximum response to my intervention
occurs and when that response goes away, what do I do?
Thank you in advance!!!
Ashley
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