Hi, rooters,

I have a tree represents data, say, tree_A, which contains branches of E, x and y.

Ideally, I’d like to make a cut to produce a new tree, tree_B.

The tree_B contains a branch which is the result of : branch E with a cut of “x > 1 && Y > 1”.

I know how to produce a histogram by call “Draw()” command with a cut.

However, for the convenience the next analysis, it’s necessary to get a tree(branch), instead of a histogram.

I’ve looked around here, but can’t find a close example.

Can any expert here tell me how to do it ?

Thanks !

Best,

Junhui