Hi,
As I am still a starter at root I still have basic questions...
I am trying to plot one ntuple variable against the same one but with
different parameters..
So I have a variable called norm which depends on pdid and pixid.
For example I can plot norm for pdid=0 and pixid=0 using the following
way:
h10->Draw("norm","pdid==0 && pixid==1");
A second histogram could be:
h10->Draw("norm","pdid==0 && pixid==37");
Now I would like to basically plot the two histograms againt one
another..ie plot norm for pdid=0 and pixid=1 against norm for pdid=0 and
pixid=37.
I am ok doing so for the same parameters but different variables, but
here I have the same variable against different parameters. To do so can I do
something like ?
h10->Draw("norm:norm","pdid==0 && pixid==1","pdid==0 && pixid==1");
or is it better to read the data and fill a 2D histogram or a compare
directly the 2 histograms...
Otherwise how do I do ?
Hope you understood my problem wasn't easy to explain...
Cheers.
This archive was generated by hypermail 2b29 : Sat Jan 04 2003 - 23:50:49 MET