Changeset 2133 for trunk/MagicSoft/Mars/Changelog

Timestamp:

05/22/03 18:27:22 (21 years ago)

Author:

moralejo

Message:

*** empty log message ***

File:

• trunk/MagicSoft/Mars/Changelog (modified) (1 diff)

trunk/MagicSoft/Mars/Changelog

@@ -1 +1 @@
                                                  -*-*- END OF LINE -*-*-
 
-
+ 2003/05/22: Abelardo Moralejo
+
+   * mhist/MHMatrix.[h,cc]
+     - add member function ShuffleRows() to randomize the order of the
+       matrix rows. This is useful for instance for the random forest, 
+       (See RanForest.C) when we feed a hadron training sample with 
+       both protons and helium nuclei: if they are ordered (first all
+       events of one type, then those of the other) the method does not
+       seem to work well. Any other kind of ordering might be harmful 
+       as well (in theta, phi or whatever).
 
  2003/05/22: Wolfgang Wittek