The kinship of programming languages
For any two languages, how much of the smaller one's vocabulary is already inside the larger one. Most of what any language calls its own, the others have too.
Each cell = what share of the smaller language's word-parts also appear in the other (overlap coefficient of their morpheme sets). Darker = more contained. Hover for the value.
Every number here is computed from the live NADA pipeline — nothing is hand-typed.