[R] correlated predictors in lr

From: Raynaud, Scott <Scott.Raynaud_at_targetbase.com>
Date: Mon, 24 Nov 2008 08:47:34 -0600

I have Q3 sales for consecutive years 2002-2007 that I'm using to predict buying (yes/no) in Q3 in 2008. My data are arranged in counting process format where each customer has 6 rows of data, one for each year. However, there is no variability within the strata at the customer level: if someone bought in 2008, then all 6 records will be flagged as buy=1. I don't think this will work and I can't figure out how to get around this in order account for the serial correlation in the predictors. Can someone point me to the correct analytical technique? Is there an R module that will perform this analysis?  

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