1. stablespec::crossdata6V
    Artificial cross-sectional data.
    csv| xlsx| json| ndjson| rda| rds
    tbl_df|500 x 6
  2. stablespec::longiData4V3T
    Artificial longitudinal data.
    csv| xlsx| json| ndjson| rda| rds
    data.frame|400 x 12