Function: mean(invert(logn(numbers("xxr") if numbers('yyx') > numbers("yxx") else numbers('yxr'))), logn(numbers('yxr') if numbers("yxx") > numbers("xxr") else numbers('yyx'))) if invert(logn(numbers("yxx") if numbers('yyx') > numbers('yxr') else numbers("xxr"))) > numbers("xxr") if numbers('yyx') > numbers("yxx") else numbers('yxr') else logn(numbers('yyx') if numbers("yxx") > numbers('yxr') else numbers("xxr"))
