Hi rooters, I am storing a large amount of data into a TTree branch. Since the detector is made up of about 10^5 'pixels' I would like to save only the fired ones and related information for each event. Furthermore the pixels are grouped in modules, the modules are grouped in supermodules etc. I write MyEvent class to store data, containing a TClonesArray of fired higest level components (supermodules). Each of them contains a TClonesArray of fired subcomponents and so on.. down to the pixels. I would like to access directly to pixel information (for example the time) with no need of looping over all the components Setting split level to an high value doesn't work Why Root doesn't split an array of objects which in turn contain a TClones array of subobjects? Could someone suggest a simple way to view pixel information directly? Thank you! carla bleve
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