Dear ROOT experts,
I recently stumbled over the following problem with displaying the content of a tree branch: if inspect the content from the TBrowser, I see an empty histogram.
If I make
tree->Draw("my_branch") , I also see the same (empty) histogram.
However, when I do
tree->Scan() or even
tree->Draw("my_branch/1.") I can see the valued stored in this branch, and the filled histogram, respectively.
This looks quite weird to me, and I was wondering if someone has an idea what is going wrong.
Note that the branch in question is filled with
unsigned long long integer numbers, and is a “flat” branch (not a vector). This is the only branch in my tree that of this type, and all other branches display correctly.
Thank you in advance,
_ROOT Version: 6.12.07
Platform: Not Provided
Compiler: Not Provided