1. HEMDAG::L
    Small real example datasets
    csv| json| rda| rds
    matrix|100 x 23
  2. HEMDAG::S
    Small real example datasets
    csv| json| rda| rds
    matrix|100 x 23
  3. HEMDAG::W
    Small real example datasets
    csv| json| rda| rds
    matrix|100 x 100
  4. HEMDAG::g
    Small real example datasets
    rda| rds
    graphNEL
  5. HEMDAG::test.index
    Small real example datasets
    json| rda| rds
    integer