[SciPy-user] integrate.odeint problem

Warren Weckesser warren.weckesser@gmail....
Mon Feb 16 07:47:54 CST 2009


Hi Peter,

Try setting the option mxstep in your call to odeint, e.g. mxstep=1000.

Warren


On Mon, Feb 16, 2009 at 6:16 AM, Peter Cimermančič <
peter.cimermancic@gmail.com> wrote:

> Hi!
>
> Using 60 differential equations, I am trying to simulate some biological
> process. After running the script, I've got next message:
>
> lsoda-- at current t (=r1), mxstep (=i1) steps
>        taken on this call before reaching tout
>        In above message, I1 =                  500
>        In above message, R1 = 0.857...E+01
> Excess work done on this call (Perhaps wrong Dfun type).
> Run with full_output = 1 to get quantitative information.
>
> After running with full_output = 1, additional information was: KeyError:
> 0.
>
> The same equations and parameters were run in Jarnac (simulation software)
> and I've got correct results, assuming equations and parameters are right.
> What else could go wrong to produce above error message?
>
> Thank you in advance,
>
> Peter
>
> _______________________________________________
> SciPy-user mailing list
> SciPy-user@scipy.org
> http://projects.scipy.org/mailman/listinfo/scipy-user
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://projects.scipy.org/pipermail/scipy-user/attachments/20090216/c05c18e2/attachment.html 


More information about the SciPy-user mailing list