Thanks a lot to everybody that helped me out with this.
Conclusions:
(1)
In order to edit arima in R:
>fix(arima)
or alternatively:
>arima<-edit(arima)
(2)
This is not contained in the "Introduction to R" manual.
(3)
A "productive" fix of arima is attached (arma coefficients printed out and
er
Hi Marc,
There is in fact an even shorter route: ?fix
Regards, Mark.
Rolf Turner-3 wrote:
>
>
> On 5/03/2009, at 10:00 PM, Marc Vinyes wrote:
>
>> It is quite exagerated that I have to build R in order to modify an
>> R file
>> without messing with dlls, and I think it would be interestin
On 5/03/2009, at 10:00 PM, Marc Vinyes wrote:
It is quite exagerated that I have to build R in order to modify an
R file
without messing with dlls, and I think it would be interesting to
make this
process easier, but for now I'm happy to be productive again.
There is probably (almost sure
>Just a quick note on your original question:
>if you use edit(arima), you have to remember that it returns the
>modified function, which then must be stored.
>I.e, use
>arima<-edit(arima)
>instead of just
>edit(arima)
>,and changes should be stored.
THIS IS IT.
IMHO, this should be written in
On Thu, Mar 5, 2009 at 10:00 AM, Marc Vinyes wrote:
>>If you ***look at the code*** for arima you will see that ``%+%'' is
>>defined
>>in terms of a call to ``.Call()'' which calls ``R_TSconv''. So
>>apparently
>>R_TSconv is a C or Fortran function or subroutine in a ``shared
>>object library''
>
>If you ***look at the code*** for arima you will see that ``%+%'' is
>defined
>in terms of a call to ``.Call()'' which calls ``R_TSconv''. So
>apparently
>R_TSconv is a C or Fortran function or subroutine in a ``shared
>object library''
>or dll upon which arima depends. Hence to do anything with
On 4/03/2009, at 10:06 PM, Marc Vinyes wrote:
Dear Carlos and Kjetil,
Thanks for your answer.
I do not think that is the way to go. If you believe that your
algorithm
is better than the existing one, talk to the author of the package
and
discuss the improvement. The whole community will
all-td21836156.html
Any other hints or maybe help with the error that I'm getting?
-Mensaje original-
De: Carlos J. Gil Bellosta [mailto:c...@datanalytics.com]
Enviado el: 03 March 2009 21:30
Para: Marc Vinyes
CC: r-help@r-project.org
Asunto: Re: [R] modifying a built in function from
adding to the points above:
3) after downloading the source package (stats) containung arima,
rename it (my.arima) and then do the changes.
Kjetil
On Tue, Mar 3, 2009 at 5:29 PM, Carlos J. Gil Bellosta wrote:
> Hello,
>
> I do not think that is the way to go. If you believe that your alg
Hello,
I do not think that is the way to go. If you believe that your algorithm
is better than the existing one, talk to the author of the package and
discuss the improvement. The whole community will benefit.
If you want to tune the existing function and tailor it to your needs,
you have several
Dear members of the list,
I'm a beginner in R and I'm having some trouble with: "Error in
optim(init[mask], armafn, method = "BFGS", hessian = TRUE, control =
optim.control, :
non-finite finite-difference value [8]"
when running "arima".
I've seen that some people have come accross the same p
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