relax SVN archive

Fix for the linear constraints for the 'R2eff' model.

The A and b matrices are no longer set to None, as this kills the auto-analysis or any analysis when
constraints are turned on. Now the constraints 0 <= R2eff <= 200 and I0 >= 0 are used.

Implemented a basic graph for the relax_disp.plot_disp_curves user function.

This simply plots out the nu_CPMG value or spin-lock field verses the R2eff/R1rho values from the
experiment. The graph of the back calculated R2eff/R1rho values from the model fit is still to be
added.

The relaxation dispersion auto-analysis now calls the relax_disp.plot_disp_curves user function.

This user function is not implemented yet, but will be used to create plots of the dispersion curves.

Fixes for the checking in the Relax_disp.test_hansen_cpmgfit_input system test.

An upper limit of 200 rad/s has been added to the linear constraints for the R2 dispersion parameters.

The spectrum wizard now uses the spectrometer.frequency user function rather than frq.set.

The frq.set user function is now called spectrometer.frequency.

Changed the dispersion GUI tab to use the model names from specific_analyses.relax_disp.variables.

The log barrier constraint algorithm is now used for the relaxation dispersion optimisation.

This is to allow constraints in the absence of gradient target functions. The constraints have been
turned on by default in the auto-analysis.

The dispersion system test script for Hansen's CPMG data can now run stand-alone.

Merged revisions 19768 via svnmerge from
svn+ssh://bugman@.../svn/relax/trunk

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r19768 | bugman | 2013-05-29 14:28:48 +0200 (Wed, 29 May 2013) | 7 lines

Added the ability for specific analyses to override the optimisation constraint algorithm.

The default is still the 'Method of Multipliers', but if the constraint_algorithm() method returns
a different string, then that will be used to select the algorithm. This allows the 'Log Barrier'
method in minfx to be used.
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