SUBJECT: Multivariable fractional polynomials AUTHORS: Patrick Royston Imperial College School of Medicine, UK Gareth Ambler Imperial College School of Medicine, UK SUPPORT: proyston@rpms.ac.uk gambler@rpms.ac.uk INSTALLATION: Use standard in1 installation instructions. Please note that under Stata 5.0, the latest official ado-files updates must be installed for mfracpol to work. HELP: From inside Stata, on-line help is available. Type . help mfracpol