Posted by tecwrg on 7/5/2016 5:25:00 PM (view original):
Posted by bad_luck on 7/5/2016 5:01:00 PM (view original):
Posted by tecwrg on 7/5/2016 4:37:00 PM (view original):
Why are you comparing it to ERA and not actual runs/9?
It doesn't make much difference:
SUMMARY OUTPUT
Regression Statistics
Multiple R 0.031772737
R Square 0.001009507
Adjusted R Square 0.00020646
Standard Error 0.569554764
Observations 1246
So you're combining three disparate baseball eras (pre-steroid, steroid, and post-steroid) and trying to come to a conclusion?
Your analysis is flawed.
There's no reason why we can't look at the data for multiple decades together.
It's not like run scoring has ever really gone crazy. For example, since 1920, the average runs per game in the NL is 8.7 with a standard deviation of 0.7. So basically, anything from 8 RPG to 9.4 RPG is normal. Almost every season since 1920 has been within that range.
There were more seasons above 9.4 RPG in the 1920's than there were in the 1990's and 2000's.