RE: [R] rate of change

Type help(deriv). However, it may be easier to compute the derivative by hand for a simple expression. HCD -Original Message- From: Fred J. [mailto:[EMAIL PROTECTED] Sent: Monday, March 15, 2004 10:20 PM To: r help Subject: [R] rate of change Hello I am wondering, how do I find if R

RE: [R] rate of change

?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:[EMAIL PROTECTED] Sent: 16 March 2004 03:20 To: r help Subject: [R] rate of change Hello I am

RE: [R] rate of change

help.search() would be a good place to start for this kind of question, but it's unlikely to be helpful in this particular case... When I see "rate of change", I think of derivatives. However, it's difficult to say much without more detail on what you are looking for. (What exactly do you mean by

[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