FSRoot

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FSRoot is an alternative to DSelectors that uses flat trees.


There are two steps:


(1) Use FlattenForFSRoot (hd_utilities/FlattenForFSRoot/flatten) to generate flat trees from the standard analysis trees.

> flatten -in [name of an input ROOT file containing an analysis tree] -out [name of the output file containing the new flat tree]

Run flatten with no flags to see further run options. This should work for data, reconstructed MC, and thrown MC.

See the FlattenForFSRoot/Documentation directory for more information.


(2) Use FSRoot (available at https://github.com/remitche66/FSRoot) to make histograms from the flat trees.

See the FSRoot/Documentation directory for documentation.


Here is a working example:

Flatten an analysis tree:

> flatten -in /u/home/remitche/FSRootExample/analysis.root -out flat.root