SUBJECT:  Nonparametric test for trend across ordered groups
AUTHORS:  K. A. Stepniewska and D. G. Altman
          Imperial Cancer Research Fund, London
SUPPORT:  k_stpniewska&icrf.ac.uk
 
COMMENTS:
Use standard in1 installation instructions.
From inside Stata, on-line help is available.  Type "help nptrend".