How do i access an array (x[10])from a tree, as roorealvar that i can use in roofit ?
sanjay
Hi,
I think Roofit supports only flat trees, so there is no automatically conversion for a Tree with arrays to a RooDataSet ,
The only possibility is then to you read your tree in a loop and fill your RooDataSet class as you need using RooDataSet::add
Best Regards
Lorenzo
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