StackRating
An Elo-based rating system for Stack Overflow
Home
|
About
|
Stats and Analysis
|
Get a Badge
Answers and rating deltas for
How to sum columns in R according to categories in 2 different groups
Author
Votes
Δ
akrun
2
+0.31
MattV
1
-2.46
Last visited: Nov 11, 2015, 2:20:35 AM