Yang Liu

Research notes in R, statistics, and population data

I write about data visualization, demography, statistical workflows, maps, R programming, and the occasional chess analysis. This site is a working notebook: polished enough to read, close enough to the code to stay useful.

Current focus

  • Child mortality and population data
  • Reproducible R workflows
  • Spatial visualization and maps
  • Chess tournament analytics

Latest Posts

Browse recent analyses below, or open the full post archive.