It would bee nice if we could select THnSparse Class Reference for scoring 3D histogram. In the case we only have a few deposit pixel per event. In order to avoid storing zeros in all the unused bins.
@lnevay Robert raised this is the weekly meeting. He has a pixel detector which is being represented by a scoring mesh, so needs event by event and merged run histogram.
It would bee nice if we could select THnSparse Class Reference for scoring 3D histogram. In the case we only have a few deposit pixel per event. In order to avoid storing zeros in all the unused bins.
That would help greatly to reduce files size.