Subsections
fix
Fix or allow parameter values to change during optimisation.
fix(element=None, fixed=True)
element: Which element to fix.
fixed: A flag specifying if the parameters should be fixed or allowed to change.
The element can be any of the following:
- `diff' -
- The diffusion tensor parameters. This will allow all diffusion tensor parameters to be toggled.
- `all_spins' -
- Using this keyword, all parameters from all spins will be toggled.
- `all' -
- All parameters will be toggled. This is equivalent to combining both `diff' and `all_spins'.
The flag `fixed', if set to True, will fix parameters during optimisation whereas a value of False will allow parameters to vary.
The relax user manual (PDF), created 2024-06-08.