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RE: st: Collapsing data to daily data


From   Nick Cox <[email protected]>
To   "'[email protected]'" <[email protected]>
Subject   RE: st: Collapsing data to daily data
Date   Tue, 1 Mar 2011 14:44:40 +0000

Usual spelling is Cox. (No, not me, not even a relative.) 

More importantly, I don't see that you need to coarsen your data for a survival analysis -- unless the sheer size of the dataset is problematic. 

It could even be that time of day data has a secondary bearing on survival... 

Nick 
[email protected] 

Brigham Whitman

Yes, these options worked out for me, thank you.

I am collapsing the data set to prepare it for a cox proportional
hazard model.  Each data point already has a few variables (distance
to cover, distance traveled, snow depth encountered) with measurements
for each point that I can average together for each day before I make
the model.

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