How to extract a subset of data from a ROOT file...
From time to time a hosts wants to do research that isn't covered in
the static plot page or isn't
available in the plots on demand
section on either the testbox web site or the main RIPE NCC site.
In these cases we can give the host the ROOT files for a given date using
/ncc/ttpro/bin/root4host
Usage:
- login to 'kauri' and do a su to 'ttraffic'
- run
/ncc/ttpro/bin/root4host ttnum.ripe.net yyyymmdd
- this will generate output files named
/ncc/ttpro/spool/ttnum.ripe.net.yyyymmdd.root
which can be distributed by http/ftp to the host
<ttm@ripe.net> $Id: extracting_subdata_from_a_ROOT_file.html,v 1.1 2002/11/14 11:01:03 ruben Exp $