[R-sig-Epi] How to calculate the nth derivative of a function

[BXC (Bendix Carstensen)]

Are you referring to numerical derivatives?
Best,
Bendix Carstensen
______________________________________________

Bendix Carstensen
Senior Statistician
Steno Diabetes Center
Niels Steensens Vej 2-4
DK-2820 Gentofte
Denmark
+45 44 43 87 38 (direct)
+45 30 75 87 38 (mobile)
+45 44 43 73 13 (fax)
bxc at steno.dk   http://www.biostat.ku.dk/~bxc 

> -----Original Message-----
> From: r-sig-epi-bounces at stat.math.ethz.ch 
> [mailto:r-sig-epi-bounces at stat.math.ethz.ch] On Behalf Of 
> Patricia Geli
> Sent: Thursday, September 27, 2007 2:42 PM
> To: r-sig-epi at stat.math.ethz.ch
> Subject: [R-sig-Epi] How to calculate the nth derivative of a function
> 
> Hi,
> 
> I have a short question regarding derivatives of functions in 
> R. The problem is that I need the nth derivative of the 
> function, where n is around 100, and the packages I have 
> managed to find which deals with derivatives in R will only 
> take the first derivative of the function. Repeating these 
> methods a 100 times won't solve the problem either, since the 
> first derivative of a numerical function gives me a scalar as 
> output. Does anyone know how to solve this problem? I'm 
> grateful for any advice!
> 
> Patricia
> 
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> 
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