DavidDoukhan/nltk — comment on commit 70995823200d9c73798853afa0b42eeb84d020a8
File: nltk/metrics/ghd.py line 38
By jnothman:

could we rename this to insert_cost, delete_cost, etc? You could indicate that they correspond to certain pronumerals in the paper.

The current shorthand provides no readability or compilation benefit, but provides confusion when you introduce cj ("column j") below where ci and cd are in scope.