1. crosstable::iris2
    Modified 'iris' dataset
  2. crosstable::mtcars2
    Modified 'mtcars' dataset
  3. nih.joinpoint::nih_sample_data
    Sample dataset
  4. surrosurv::gastadj
    Individual data from the adjuvant GASTRIC meta-analysis
  5. surrosurv::gastadv
    Individual data from the advanced GASTRIC meta-analysis