sometimes you have as objective function not one value of the results file, but you want to have a derived value of some iterations.
CAESES can evaluate directly the mean of some values in a column in the results file, but maybe you need the max (or the min, or the ratio max/min..or whatever) value of the last n- iterations.
Or, you would like to have a result interpolating some results in the output file.
If you need, I create this feature that do this job.
You need to run it in the design postprocessing.
I hope that can be useful,
Cheers and good results,