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> On Apr 12, 2018, at 1:36 PM, hudeyfa jama wrote:
>
> Hello All,
>
>
> I'm struggling to solve this ODE using R,
>
>
> vdpol <- function (h, v, t
See inline remarks.
On 16-07-2013, at 10:07, Raphaëlle Carraud
wrote:
> Hello,
>
> I am creating a program with R to solve a differential equation system.
> However, I get the following message I do not understand :
>
>> out <- ode(y = state, times = z, func = liquide, parms = 0, atol = 0)
Hi,
just press ESC and the solver should stop.
BTW, warnings like this are usually a sign of unrealistic parameters,
problematic model equations or inappropriate tolerance settings.
See also:
http://cran.r-project.org/web/packages/deSolve/vignettes/deSolve.pdf#46
ThPe
On 5/2/2013 10:36 AM,
rom: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
> Behalf
> Of David Winsemius
> Sent: Thursday, May 02, 2013 7:22 AM
> To: Tjun Kiat Teo
> Cc: r-help@r-project.org
> Subject: Re: [R] ODE solver
>
>
> On May 2, 2013, at 1:36 AM, Tjun Kia
On May 2, 2013, at 1:36 AM, Tjun Kiat Teo wrote:
> I am trying to use the package ode and periodically it will come up with
> this error message
>
> Warning..Internal T (=R1) and H (=R2) are
> such that in the machine, T + H = T on the next step
> (H = step size). Solver will continue anyway.
>
}
data<-seq(1.5,2.1,,100)
plot(data,sapply(data,SSD),type="l")
--
Regards/Cordialement
Benoit Boulinguiez
-Message d'origine-
De : spencerg [mailto:spencer.gra...@prodsyse.com]
Envoyé : vendredi 15 mai 2009 05:28
À : Benoit Boulinguiez
nt known values.
Nevertheless, I still get this 'Error about object 'K1' not found'.
Regards/Cordialement
Benoit Boulinguiez
-Message d'origine-
De : Dieter Menne [mailto:dieter.me...@menne-biomed.de]
Envoyé : jeudi 14 mai 2009 12:12
À : 'Benoit Boulingu
rs and {C0,m,V} are
constant known values.
Nevertheless, I still get this 'Error about object 'K1' not found'.
Regards/Cordialement
Benoit Boulinguiez
-Message d'origine-----
De : Dieter Menne [mailto:dieter.me...@menne-biomed.de]
Envoyé : jeudi 14 mai 2009 12:1
Benoit Boulinguiez ensc-rennes.fr> writes:
> I try to assess the parameters (K1,K2) of a model that describes the
> adsorption of a molecule onto on adsorbent.
>
> equation: dq/dt = K1*C*(qm-q)-K2*q
>
> I know the value of 'qm' and I experimentally measure the variables 'q',
> 'C', and the time
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