1. umx::Fischbein_wt
    Weight data across time.
    csv| xlsx| json| ndjson| rda| rds
    data.frame|6 x 6
  2. umx::GFF
    Twin data: General Family Functioning, divorce, and well-being.
    csv| xlsx| json| ndjson| rda| rds
    data.frame|3185 x 47
  3. umx::docData
    Twin data for Direction of causation modelling
    csv| xlsx| json| ndjson| rda| rds
    data.frame|1400 x 13
  4. umx::iqdat
    Twin data: IQ measured longitudinally across 4 ages.
    csv| xlsx| json| ndjson| rda| rds
    data.frame|562 x 9
  5. umx::us_skinfold_data
    Anthropometric data on twins
    csv| xlsx| json| ndjson| rda| rds
    data.frame|395 x 20