Fast computation of Krippendorff's alpha agreement measure.
Based on Thomas Grill implementation.
Given a reliability data matrix, run:
import krippendorff krippendorff.alpha(reliability_data=...)
alpha's docstring for more details.
pip install krippendorff
The implementation is fast as it doesn't do a nested loop for the coders. However,
V should be small, since a
VxV matrix it's used.