Data frame with with 9 variables, used to illustrate certain functions. Data are derived from the National Health and Nutrition Examination Survey, years 2003-2004, although the variables 'time' and 'event' are simulated (fake).
Centers for Disease Control and Prevention (CDC). National Center for Health Statistics (NCHS). National Health and Nutrition Examination Survey Data. Hyattsville, MD: US Department of Health and Human Services, Centers for Disease Control and Prevention, 2003-2004. https://wwwn.cdc.gov/nchs/nhanes/continuousnhanes/default.aspx?BeginYear=2003. Accessed June 8, 2019.