Question about source weights

[matthewpaley]

I see from the documentation that the default weights are:

c(CBS = 0.344, Yahoo = 0.400, ESPN = 0.329, NFL = 0.329,
FFToday = 0.379, NumberFire = 0.322, FantasyPros = 0.000,
FantasySharks = 0.327, FantasyFootballNerd = 0.000,
Walterfootball = 0.281, RTSports = 0.330,
FantasyData = 0.428, Fleaflicker = 0.428)

Can you give any insight into how these weights were determined? Also, any reason why FantasyPros is 0? My initial thought is that FP aggregates their data from other sources, and you didn't want to double weight it.

Thanks!

[isaactpetersen]

The default weights are based on historical accuracy, specifically they are calculated as 1 - MASE (you can see our accuracy articles on the blog). However, you can change them to whatever you want. You are correct that FantasyPros and FantasyFootballNerd have default weights of 0 so as not to double weight any individual projection. But you can certainly include them if you want. I'll close this for now--let us know if you have other questions.