[ROOT] TTree::SetAlias

From: Gene Van Buren (gene@bnl.gov)
Date: Tue Jul 08 2003 - 21:32:06 MEST


I see that variable "aliases" have been introduced
into TTree recently (30 June patch). While I have
not yet used them, they sounds strikingly similar to
what I have been doing via TTreeFormulas for quite
some time now. I am curious as to the differences
between these aliases and TTreeFormulas.
One thing I can see immediately is that the aliases
can be persistent (wonderful!). Are there other
differences? Are aliases parsed more quickly?

Thanks,
-Gene



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