?fdHess

Check out the function fdHess in the library(nlme). 

It numerically calculates the gradient and Hessian of a given function.

Regards

Wayne


-----Original Message-----
From: Fred J. [mailto:phddas@yahoo.com]
Sent: 16 March 2004 03:20
To: r help
Subject: [R] rate of change


Hello
I am wondering, how do I find if R has a certain
funciton to do a given task. do I just type
help.search("rate").
I am just trying to find a function to calculate the
rate of change for a variable. I could come up with
one if there isn't any allready builtin.

thanks

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