Hi,

Could someone either explain or point me to a link that explains specifically how to use park factors on Runs Above Average offensive data.

I'm comfortable using park factors on RC-style (i.e. absolute runs) data, as explained here.

But you can't just divide by a park factor if you're using RAA data, as that would just move everyone back toward zero instead of giving a consistent across-the-board boost or penalty to all hitters on a team.

Not understanding how to handle this is the main reason that I've been so reluctant to move to using PA-based linear weights instead of the outs-based linear weights I've been using up until now. And I just haven't seen a good explanation (which means I've probably missed it).

Thanks,

Justin

Could someone either explain or point me to a link that explains specifically how to use park factors on Runs Above Average offensive data.

I'm comfortable using park factors on RC-style (i.e. absolute runs) data, as explained here.

But you can't just divide by a park factor if you're using RAA data, as that would just move everyone back toward zero instead of giving a consistent across-the-board boost or penalty to all hitters on a team.

Not understanding how to handle this is the main reason that I've been so reluctant to move to using PA-based linear weights instead of the outs-based linear weights I've been using up until now. And I just haven't seen a good explanation (which means I've probably missed it).

Thanks,

Justin

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