Thanks Edward for your information. I am only familar with modelfree and just
started to use relax since when I run modelfree using axially symetric models
and got some problems.
I only have data in 600 MHz and should only fit m0, m1-m5 and m9 in this case. I
have tried to run modsel.py using these models, still error occurred as I
posted previsouly. Not sure how to fix the problem.

Best wishes,

Hongyan

Quoting Edward d'Auvergne <[EMAIL PROTECTED]>:

> Hi Hongyan,
> 
> Chris MacRaild has replicated your problem and has created a bug
> report for you at https://gna.org/bugs/?8059.  I hope you don't mind
> -- I have added your email address to the CC list for bug #8056 so
> that you are kept informed on how the bug is progressing.
> 
> The use of models m1 to m5 is for when you have collected the R1, R2,
> and NOE at a single field strength, i.e. you have 3 data points per
> spin system.  Models m1 to m5 have a maximum of 3 parameters hence can
> be optimised and the resultant parameter values are statistically
> meaningful.  The other models, m6 to m8, have been extensively used in
> the literature when relaxation data at two or more field strengths
> have been collected.  For example see:
> 
>     Korzhnev et al., Prog. NMR Spectorsc., 2001, 38(3), 197-266.
>     Fushman et al., JMB, 1997, 266(1), 173-194.
>     Orekhov et al., JBNMR, 1999, 14(4), 345-356.
>     Zhuravleva et al., JMB, 2004, 342(5), 1599-1611.
> 
> Model m6 is specifically the full Clore et al., JACS, 1990, 112(12),
> 4989-4991 equation using all the extended model-free equation
> parameters (S2f, tf, S2s, and ts).  Model m7 and m8 are simply models
> m5 and m6 with the Rex parameter added.  The last two models m0 and m9
> are where there are no statistically significant internal motions on
> the picosecond to nanosecond timescales (well, according to the
> relaxation data).
> 
> Cheers,
> 
> Edward
> 
> 
> On 12/19/06, Hongyan Li <[EMAIL PROTECTED]> wrote:
> > Dear relax-users,
> > I am a new user of relax, I have tried to run modelfree analysis and get
> m0, m1,
> > to m9 models when I cheked the results it seems m6,m7,m8 with no
> parameters
> > fitted and m9 with Rex fitted. I don't think there is m9 in modelfree. Can
> we
> > just fit m1,m2,m3,m4,and m5 as modelfree does? and when I run modsel.py
> using
> > sample scripts I got error and asked me to re-run with debug flag. By
> typing
> > relax --debug modsel.py and I got error again and it looks like that:
> >
> > relax> state.save(file='relax_state_20061912_124038', dir=None, force=0,
> > compress_type=1)
> > Opening the file 'relax_state_20061912_124038.bz2' for writing.
> > Traceback (most recent call last):
> >   File "modsel.py", line 20, in ?
> >     eliminate()
> >   File "/data2/usr-local/relax-1.2.9/prompt/eliminate.py", line 97, in
> > eliminate
> >     self.relax.generic.eliminate.eliminate(run=run, function=function,
> > args=args)
> >   File "/data2/usr-local/relax-1.2.9/generic_fns/eliminate.py", line 56,
> in
> > eliminate
> >     for i in xrange(num_instances(self.run)):
> >   File "/data2/usr-local/relax-1.2.9/specific_fns/model_free.py", line
> 2605, in
> > num_instan
> > ces
> >     raise RelaxFault
> > RelaxFault: RelaxError: Impossible to be here, please re-run relax with
> the
> > '--debug' flag
> >  and summit a bug report at https://gna.org/projects/relax/.
> >
> > Does anybody know how to do modelselection?
> >
> > Very much appreciate any suggestion!
> >
> > Cheers!
> >
> > Hongyan
> >
> >
> >
> > _______________________________________________
> > relax (http://nmr-relax.com)
> >
> > This is the relax-devel mailing list
> > [email protected]
> >
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> >
> 


Dr. Hongyan Li
Department of Chemistry
The University of Hong Kong
Pokfulam Road
Hong Kong


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