-Original Message-
From: Berton Gunter [mailto:[EMAIL PROTECTED]
Sent: 05 May 2005 23:34
To: 'Uzuner, Tolga'; r-help@stat.math.ethz.ch
Subject: RE: [R] Numerical Derivative / Numerical Differentiation of
unknown funct ion
But...
See ?numericDeriv which already does
Uzuner, Tolga wrote:
Ah... I searched for half an hour for this function... you know, the help function in R could really be a lot better...
help() assumes you know the name of the thing you're looking for. You
should be using help.search('derivative'), which for me gave
width.SJ(MASS)
] On Behalf Of Peter Dalgaard
Sent: Thursday, May 05, 2005 8:51 PM
To: Uzuner, Tolga
Cc: 'r-help@stat.math.ethz.ch'; 'Berton Gunter'
Subject: Re: [R] Numerical Derivative / Numerical Differentiation of unkno
wnfunct ion
Uzuner, Tolga [EMAIL PROTECTED] writes:
Ah... I searched for half
Hi,
I have been trying to do numerical differentiation using R.
I found some old S code using Richardson Extrapolation which I managed to get
to work.
I am posting it here in case anyone needs it.
richardson.grad -
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Uzuner, Tolga
Sent: Thursday, May 05, 2005 3:21 PM
To: 'r-help@stat.math.ethz.ch'
Subject: [R] Numerical Derivative / Numerical Differentiation
of unknown funct ion
Hi,
I have been trying
cannot see it's implementation ? Will this work then ?
-Original Message-
From: Berton Gunter [mailto:[EMAIL PROTECTED]
Sent: 05 May 2005 23:34
To: 'Uzuner, Tolga'; r-help@stat.math.ethz.ch
Subject: RE: [R] Numerical Derivative / Numerical Differentiation of
unknown funct ion
But...
See
only
have a handle to the function, but you cannot see it's
implementation ? Will this work then ?
-Original Message-
From: Berton Gunter [mailto:[EMAIL PROTECTED]
Sent: 05 May 2005 23:34
To: 'Uzuner, Tolga'; r-help@stat.math.ethz.ch
Subject: RE: [R] Numerical Derivative / Numerical
Dear all,
I now want to get the numerical derivative of some multivariate function
y=f(x_1,...,x_k) at some specific point x_0=(x_10,...,x_k0).
I know deriv() funtion can give the numerical derivative when f is an known
fuction. Now the f is an unknown fuction, but I can give many points
Dear all,
I now want to get the numerical derivative of some multivariate function
y=f(x_1,...,x_k) at some specific point x_0=(x_10,...,x_k0).
I know deriv() funtion can give the numerical derivative when f is an known
fuction. Now the f is an unknown fuction, but I can give many points
