Hi,
The file Event.root is discussed in the few pages before the description of
TEventList in Chapter 12. It is generated in $ROOTSYS/test by the Event test
program.
To generate this file, go to the test directory
make Event <====this will make libEvent.so and the Event executable
Event 500 0 99 1 <===this will generate Event.root
In an interactive session, do
root > gSystem->Load("libEvent");
root > TFile f("Event.root");
root > T->Draw(">>mylist","fNtrack>600")
Rene Brun
Sudeep Chatterji wrote:
>
> Hi,
> In the chapter No.12 on tree, I am facing one problem. In the section "Creating an Event list", I am trying to run the following program.
> TFile *f=new TFile("Event.root")
> T->Draw(">>myList","fNtrack>600")
> Now i have two problems:-
> 1)The file Event.root is not available in root.
> 2)Even if Event.root is available the above commands are still giving the error,
> "T is not define in the current scope".
> Is it because we have to generate it using the .dat file?
> regards,
> sudeep.
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