d STB-49 gr37. Cumulative distribution function plots. d STB insert by d David Clayton, MRC Biostatistical Research Unit, Cambridge; d Michael Hills (retired). d Support: david.clayton@@mrc-bsu.cam.ac.uk and mhills@@regress.demon.co.uk d After installation, see help ^cdf^. f gr37/cdf.ado f gr37/cdf.hlp f gr37/t4.dta