Speaker
Ianna Osborne
(Princeton University)
Description
This Jupyter notebook tutorial will cover usage of Awkward Arrays within an RDataFrame.
In Awkward Array version 2, the ak.to_rdataframe function presents a view of an Awkward Array as an RDataFrame source. This view is generated on demand and the data is not copied. The column readers are generated based on the run-time type of the views. The readers are passed to a generated source derived from ROOT::RDF::RDataSource.
The ak.from_rdataframe function converts the selected columns as native Awkward Arrays.
The tutorial demonstrates examples of the column definition, applying user-defined filters written in C++, and plotting or extracting the columnar data as Awkward Arrays.
Authors
Ianna Osborne
(Princeton University)
Jim Pivarski
(Princeton University)
