SUBJECT:  Calculating person-years and incidence rates
AUTHOR:   Joseph Hilbe, Editor, STB
SUPPORT:  FAX 602-860-1446
  
COMMENTS:
Use standard in1 installation instructions. From inside Stata, on-line
help is available.  Type 'help pyears'.

The data used in sbe5 is contained in the dta subdirectory.  Coyp to any 
temporary directory if you wish.