i

[i_on_error_ratio_tolerance #]

[num_highest_I_values_to_keep #num]

hkl_Is_from_hkl4 is used for generating a powder pattern from single crystal data in ShelX HKL4 format, see example HKL4_TO_PP.INP.

[iters #]

The maximum number of refinement iterations, iters is set to 500000 by default