Re: [R] ODE solver

2013-05-02 Thread Thomas Petzoldt
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,

Re: [R] ODE solver

2013-05-02 Thread William Dunlap
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

Re: [R] ODE solver

2013-05-02 Thread David Winsemius
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. >

[R] ODE solver

2013-05-02 Thread Tjun Kiat Teo
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. And then the program just take very long to run. Is there an