TMultiLayerPerceptron

Hi,

I’ve read several forum posts and almost have the answer to this.

I am training a TMultiLayerPerceptron - I have a tree with many more background events than signal events. So I need to set a weight to account for this as stated eg here:
root.cern.ch/phpBB2/viewtopic.php?t=2527

If I call TTree:SetWeight(), then it sets a weight for all the events in the TTree. How do I apply a weight to individual events, or even better, to events with a certain criterion?

many thanks

Hi,

answering my own question, I believe Christophe already addressed this here:

root.cern.ch/phpBB2/viewtopic.php?t=6130

This might be something to update the documentation with…

all the best
Peter Cogan