[binrec]

Interesting map.

The methodology probably wouldn't be comparable to Tyshchenko's, but there is an estimate for the lexical distance between Tocharian and the other Indo-European language families (10.2307/601651) - Tocharian comes out closest to Germanic and Greek.

Then again, Tocharian wasn't spoken anywhere near Europe when it was attested, so it isn't strictly within the scope of the map - but it's unclear how it got there. The most popular view, as far as I know, is that it was the second family to branch off of Indo-European, after Anatolian, but Adams showed that it shares some innovations with Germanic (the reflexes of syllabic resonants and the expansion of the singulative function of the n-stems to adjectives) and Greek (a locative dual *-oisi, represented in the Tocharian B genitive dual), and Eric Hamp placed Tocharian in a 'Northern Indo-European' subgroup with Germanic, Balto-Slavic, and Albanian.