root2csv

Overview ¶

root2csv converts the content of a ROOT TTree to a CSV file.

Usage of root2csv:
  -f string
    	path to input ROOT file name
  -o string
    	path to output CSV file name (default "output.csv")
  -t string
    	name of the tree to convert (default "tree")

By default, root2csv will write out a CSV file with ';' as a column delimiter. root2csv ignores the branches of the TTree that are not supported by CSV:

• slices/arrays
• C++ objects

Example:

$> root2csv -o out.csv -t tree -f testdata/small-flat-tree.root
$> head out.csv
## Automatically generated from "testdata/small-flat-tree.root"
Int32;Int64;UInt32;UInt64;Float32;Float64;Str;N
0;0;0;0;0;0;evt-000;0
1;1;1;1;1;1;evt-001;1
2;2;2;2;2;2;evt-002;2
3;3;3;3;3;3;evt-003;3
4;4;4;4;4;4;evt-004;4
5;5;5;5;5;5;evt-005;5
6;6;6;6;6;6;evt-006;6
7;7;7;7;7;7;evt-007;7