Frank Hansen updates his story and writes:
Here is a link to the new stuff. The update is a little less than half way down the page.
1. used display() instead of summary()
2. include a proxy for [non] newbies — whether I can find their name in a previous Chicago Marathon.
3. graph actual pace vs. fitted pace (color code newbie proxy)
4. estimate the model separately for newbies and non-newbies.
some incidental discussion of sd of errors.
There are a few things unfinished but I have to get to bed, I’m running the 2010 Chicago Half tomorrow morning, and they moved the start up from 7:30 to 7:00 because it’s the day of the Bears home opener too.