Hello!

Just would like to make sure I am not doing something wrong.
I am running an OLS regression. I have several subgroups in the data
set (locations) - and in each location I have weekly data for 2 years
- on my DV and on all predictors. Looks like this:

location   week   DV   Predictor1   Predictor 2
location1 week1 xxx   xxxxxxx     xxxxxxxxx
location1 week2 xxx   xxxxxxx     xxxxxxxxx
.
.
.
location2 week1 xxx   xxxxxxx     xxxxxxxxx
location2 week2 xxx   xxxxxxx     xxxxxxxxx

My DV variable was mean-centered - for each location and I am using
this mean-centered DV as the DV in lm. Also, I am using the mean of
each location as a weight when I run this regression.

Would it still be correct to calculate pcse for this regression? I am
not sure because pcse uses the group identifier - so am I not somehow
double-counting things?
Thank you very much!

-- 
Dimitri Liakhovitski
Ninah Consulting
www.ninah.com

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