[6445] in s-news-athena
second derivatives
daemon@ATHENA.MIT.EDU (Gerhard Paass)
Wed Feb 15 03:01:06 1995
Date: Wed, 15 Feb 1995 08:34:04 +0100
From: Gerhard Paass <Gerhard.Paass@gmd.de>
To: s-news@utstat.toronto.edu
Cc: paass@borneo.gmd.de
To perform variance calculations I look for a function - similar to
deriv - which determines the second partial derivatives of an S-PLUS
expression with respect to a given variable. The function should
generate an S-PLUS expression implementing the second derivative.
Thank you for hints
Gerhard Paass
__________________________________________________________________________
Dr. Gerhard Paass email: paass@gmd.de
GMD (German Nat. Research Center for Comp. Sci.) phone: +49 2241 142698
Schloss Birlinghoven, D-53754 St. Augustin, Germany fax: +49 2241 142384
__________________________________________________________________________
