I am looking for a way to find a list of Tree entries/indices obeying a condition. The problem is I have multiple variables for each entry and I need to find out which entries pass a selection before using a different variable for a calculation. I have seen the TEntryListArray but I am not sure if this does what I want or how to use it.
Many thanks in advanced!
_ROOT Version: ROOT 6.14/06 Built for linuxx8664gcc
See this post. The first answer pretty much does exactly what you want - you can impose your own conditions on certain variables and do other things with other variables in the same event.
Hi. I am trying to find a way of not looping over every entry as I have nearly 800,000 entries each with 100ish variables. Is there another way? How does TEntryListArray work?