Dear Root users,
I would like to create a tree that has branches coming off of branches. A background to the problem is as follows-
My data is grouped into (.csv) files named by the year the data within each file was taken. I would like to compile a large number of years worth of data and read this data into a tree. The first set of branches should indicate the date/year, whilst the branches running off of these should represent the columns of data within each file.
I currently have defined a TTree
TTree *year = new TTree(“Y”, “Year”)
I can read any individual data file into the tree
However, I would like to run this over multiple files which represent data from different years. I have tried to use TChain, but I am not familiar with this and I’m unsure how to use this. I’d appreciate some advice on how to tackle this issue.