Extended systemtest for -s Relax_disp.test_sod1wt_t25_set_grid_r20_from_min_r2eff.
Feature request: #3151, (https://gna.org/support/index.php?3151) - User function to set the R20 parameters in the default grid search using the minimum R2eff value.
The systemtest now both test the creation of the correct values, the running of grid_search, and the auto_analysis.
