Re: ;1 appended to objects

Rene Brun (Rene.Brun@cern.ch)
Mon, 04 May 1998 23:59:24 +0200


Chris Jillings wrote:
>
> Hi again,
> I have a large paw ntuple which gets read in to h2root and converted
> to a tree. In compiled code using version 2_00_00 of root, I make about
> 4500 histograms and write them to file. This histogram name and title is
> unique to each histogram, of course.
> The problem is that some histogram titles have a ";1" appended to
> their title. Not all histograms have this property. That is to say, when I
> try to read these histgrams back in from file, I can read some but not all
> of them. I have looked a bit at them with the broser, but it is hard to
> use the browser with 4500 objects.
>
> Any ideas? Thanks,

When you write your histograms on the Root file, one key is created
for each histogram. The name of the key is the name of the histogram.
I am curious to know how the cycles have been generated.
Do you have an example of the macro generating the histograms from
the ntuple?
About the 4500 objects, you should structure your histograms
into directories/subdirectories for a more convenient use of the
browser.

Rene Brun