On Mon, 15 Oct 2007, Thomas Yee wrote:
Hello,
I was wondering if the functions deriv3(), deriv() etc. could be extended
to handle psigamma() and its special cases (digamma(), trigamma()
etc.). From the error message it seems that 'psigamma' needs to be
added to the derivatives table.
This
If you are modifying it it would also be nice to add
{ to the derivative table so one can write this:
f - function(x) x*x
deriv(body(f), x, func = TRUE)
Currently, one must do:
deriv(body(f)[[2]], x, func = TRUE)
On 10/15/07, Prof Brian Ripley [EMAIL PROTECTED] wrote:
On Mon, 15
BTW, this has come up several times before, e.g.
http://tolstoy.newcastle.edu.au/R/e2/help/07/08/22447.html
is a call for patches.
On Mon, 15 Oct 2007, Prof Brian Ripley wrote:
On Mon, 15 Oct 2007, Thomas Yee wrote:
Hello,
I was wondering if the functions deriv3(), deriv() etc. could be
Hello,
I was wondering if the functions deriv3(), deriv() etc. could be extended
to handle psigamma() and its special cases (digamma(), trigamma()
etc.). From the error message it seems that 'psigamma' needs to be
added to the derivatives table.
This might be easy since psigamma() has a deriv
