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[R-sig-dyn-mod] Getting Error while solving lsode()
2 messages · Munjal Patel, Daniel Reed
Hi Munjal: The error message actually suggests a solution: increase maxsteps. To do so, when you call the numerical integrator set the maxsteps parameter to a large number ? I think the default is 5000, so some number beyond that. Cheers, Daniel _______________________________ Daniel C. Reed, PhD. Postdoctoral Fellow, Dept. of Earth & Environmental Sciences, University of Michigan, Ann Arbor, MI, USA. email: reeddc at umich.edu web: www.danielreed.org Twitter: @DanielReedOcean
On Jul 14, 2014, at 10:38 AM, Munjal Patel <munjalpatel85 at gmail.com> wrote:
Dear List,
I am Solving ODE by use of lsode() and ode() functions(at different places)
for example like N=100 or N=200 times
Unfortunately i am getting the following errors.
Can you please suggest me the way of resolving this.
Your help will be appriaciated.
Thank you very much
DLSODE- At current T (=R1), MXSTEP (=I1) steps
taken on this call before reaching TOUT
In above message, I1 = 5000
In above message, R1 = 0.2610298726963D+04
DLSODE- At current T (=R1), MXSTEP (=I1) steps
taken on this call before reaching TOUT
In above message, I1 = 5000
In above message, R1 = 0.2770699522357D+04
Warning messages:1: In lsode(yini, c(0, time), defun, parms,
rtol = 1e-08, atol = 1e-08, :
an excessive amount of work (> maxsteps ) was done, but integration
was not successful - increase maxsteps2: In lsode(yini, c(0, time),
defun, parms, rtol = 1e-08, atol = 1e-08, :
Returning early. Results are accurate, as far as they go3: In
lsode(yini, c(0, time), defun, parms, rtol = 1e-08, atol = 1e-08, :
an excessive amount of work (> maxsteps ) was done, but integration
was not successful - increase maxsteps4: In lsode(yini, c(0, time),
defun, parms, rtol = 1e-08, atol = 1e-08, :
Returning early. Results are accurate, as far as they go
--
Munjal Patel
PhD Student
Division of Pharmaceutical Sciences
Long Island University
Brooklyn,NY
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