To create a 1-d histogram use:
> TH1F *hist = new TH1F("hist", "title; x axis; y axis", nBins, xMin, xMax);
Where (xMax-xMin)/nBins is the bin width. Then given your generated numbers x1, x2, etc., use:
> hist->Fill(x1);
> hist->Fill(x2);
. . ... etc.
to fill the histogram. From this you can get the mean (TH1F::GetMean()) and RMS (TH1F::GetRMS()) of the distribution.
Hope that helps,
Chris
On Dec 1, 2010, at 18:02, <abraham1_at_nmsu.edu> wrote:
> Dear All
> I was trying to analyse a set of data I already generated(100 raw numbers with 3
> significant figures). I wanted to make histogram with fixed bin size to study their
> distribution and if possible to find the width.
> I've been working with Root 2/3 months, but I'm having trouble on inserting raw data .
> I appreciate your suggestions
>
> Abraham
>
>
>
> ----- Original Message -----
> From: Peter Elmer <Peter.Elmer_at_cern.ch>
> Date: Monday, November 29, 2010 2:43 am
> Subject: [ROOT] ROOT 5.27/06{a,b} patch releases
> To: roottalk_at_root.cern.ch
>
>> Hi, >> >> It looks like a couple of patch releases were made on top of ROOT >> 5.27/06in the past 6 weeks, but there is no documentation about >> them... (Or at >> least I could not find it.) >> >> Could a patch page be put up to document what is in those two >> patch >> releases? >> >> (This would be useful independently of whether patch releases >> will >> continue to be made for 5.27/06 after 5.28/00 comes out...) >> >> thanks, >> Pete >> >> -------------------------------------------------------------------- >> ----- >> Peter Elmer E-mail: Peter.Elmer_at_cern.ch Phone: +41 (22) >> 767-4644 >> Address: CERN Division PPE, Bat. 32 2C-14, CH-1211 Geneva 23, >> Switzerland--------------------------------------------------------- >> ---------------- >> >>
This archive was generated by hypermail 2.2.0 : Thu Dec 02 2010 - 23:50:02 CET