Yes, statisticians call the natural versions of the cumulative normal
distribution, pnorm. As I recall
erf(x) = 2 * pnorm(x * sqrt(2)) - 1
erfc(x) = 2 * pnorm(x * sqrt(2), lower=FALSE)
On Sat, 21 Jun 2003, Salvatore Barbaro wrote:
> does anybody know if R contains error functions like
> "erf" and "erfc" in S-Plus? Thanks in advance.
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
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