Rootpy and multidimensional array branches

[etejedor]

Hi @LeWhoo

Here’s how you would do it with PyROOT:

Store 2D array into TTree use python

I want to store 2D array of float numbers in a Tree use python. Ideally, the 2D array has 1D fixed (8 elements) and the other dimension not fixed. But I’ll be happy even if two dimensions all with fixed length. Can anybody help or point me to some useful resource? Thanks. I figured out how to store a 1D array, use a 1D vector. But could not find a solution for 2D array in python.

The variable length of one of the dimensions is provided by another branch.

Cheers,
Enric