A note on a proposed student t approximation
Li and De Moor (1999, Comput. Statist. Data Anal. 29, 213216) suggested a simple approximation to the distribution function of the student t family. This note observes that the GaverKafadar approximation (1984, Amer. Statist. 38, 308311) is of the same type, and it ought to be preferred to the LiDe Moor approximation on the grounds of accuracy and convenience.
computation distribution function quantile function student t distribution