mailRe: Running a CPMG analysis with two fields at two delay times.


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Posted by Edward d'Auvergne on February 17, 2014 - 17:41:
Hi Troels,

This looks like a problem with the current data checks prior to
executing the auto-analysis.  To fix this, I would recommend the
following steps:

1)  First, I would recommend creating a bug report.  It would be good
to attach a relax save state for this problem with data from a single
spin system, saved just before clicking on 'Execute'.  If you have
such a state file already for the entire system, the spin editor
window can be used to delete all but one spin (which may itself reveal
more bugs, but this is a good thing :).

2)  Once the bug report is created with the save state attached, a
system test can be created which loads the state file, saved in the
test_suite/shared_data directories, and executes the auto-analysis,
triggering the bug.

3)  Fix the bug and close the report.

4)  Optimisation of the system test - by making sure it doesn't take
more than 1-2 seconds.  Hidden optimisation settings in the
auto-analysis can be used for this.

Would you like to give this a go?

Cheers,

Edward



On 17 February 2014 17:24, Troels Emtekær Linnet <tlinnet@xxxxxxxxxxxxx> 
wrote:
Hi Edward.

I have setup a CPMG analysis for a dataset obtained at two fields.
The data is also recorded at two delay times.

The setup looks like this in the GUI.
http://cdn.imghack.se/images/4dc2eadbea2862889374daa148177347.png

Last lines of output from relax
-------------------------------------
relax> state.save(state='compare_setup', dir=None, compress_type=1,
force=True)
Opening the file 'compare_setup.bz2' for writing.
- The 'R2eff' model -

relax> pipe.copy(pipe_from='compare_128_FT', pipe_to='compare_128_FT_R2eff',
bundle_to='cpmg_disp_sod1d90a')

relax> pipe.switch(pipe_name='compare_128_FT_R2eff')

relax> relax_disp.select_model(model='R2eff')
R2eff/R1rho value and error determination.

relax> calc(verbosity=1)
RelaxError: The experiment 'SQ CPMG' is not of the fixed relaxation time
period data type.
-----------------------------------------

Would it be possible to modify relax to allow this?

Best
Troels

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