d STB-32 snp11.  Test for trend across ordered groups revisited.
d STB insert by  
d Peter D. Sasieni, Imperial Cancer Research Fund, London;
d Katarzyna A. Stepniewska, Imperial Cancer Research Fund, London;
d Douglas G. Altman, Imperial Cancer Research Fund, London.
d Support:  FAX (011)-44-171-269-3429
d After installation, see help ^nptr^ and help ^nptri^.

f snp11/nptr.ado
f snp11/nptr.hlp
f snp11/nptri.ado
f snp11/nptri.hlp
f snp11/nptrend.dta