New function to infer degree from kinship coefficient

[stephenturner]

Need a function to take kinship coefficient and infer degree. See inference criteria from Manichaikul 2010, which is used by nearly everyone regardless of method they're using:

I've got some code laying around somewhere that does this down to whatever degree you want. I'll modify and put it here.

[stephenturner]

🐢

[stephenturner]

This is the culprit 🤦 🐢

https://github.com/signaturescience/skater/blob/ad89f9a6506c63343f119a20c766d69b1f07d3d8/R/utils.R#L70

This is a ~7000X speed up 🚀 🐇

https://github.com/signaturescience/skater/blob/aa97d9b2bd33077e20ccef3fd79de9aaeaa302c0/R/utils.R#L75

[vpnagraj]

base::findInterval() ?! cool.