SetBranchAddress
The function `SetBranchAddress` is a method provided by the ROOT data analysis framework, primarily used in conjunction with its Tree data structure. It allows users to associate a variable or array in their program with a branch within a ROOT Tree, enabling efficient data access and manipulation.
A ROOT Tree is a collection of entries, each containing a set of named branches that store
The function signature for `SetBranchAddress` is typically as follows:
`SetBranchAddress(const char branchName, T address, Int_t branch = -1, Int_t bufSize = 0)`. Here, `branchName` is the name
For example, if a Tree contains a branch named "particle_mass" storing floating-point values, a user could call
`SetBranchAddress` is particularly useful in event loops, where each entry in the Tree is processed sequentially.