Hi Philippe,
> It should be possible to just do
> tree->SetName("newname");
> file->Write()
> However the original tree meta-data will still be present on the disk
> and I am not sure you can safely remove it.
>
> An alternative is to create a friend tree.
> new TTree("newname");
> tree->AddFriend(oldtree);
> file->Write();
Thanks. What method would you preffer?
This is my problem: For some automatic reading procedure I need well
defined tree-names (eg, data tree: Data, corresponding Header-tree:
DataHeaders) But we have old files which don't follow this convention.
Now I want to write a small tool which 'converts' the old files such
that they fit the new scheme...
Thomas.
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