merge

Merge results from multiple executions (ex1..exN) into merged CSV/Parquet artifacts:

• Aggregated (pick best-of/best and worst-of/worst across executions per K).

• FUN/VAR per target (select execution with best/worst aggregated correlations for each K).

• TOP per target (copy rows matching the chosen execution per K).

• Info (sum computing times).

Also cleans the original per-execution CSV/Parquet files after writing merged outputs.

Parameters