Dear ROOT users,
following a previous message I send last year concerning plot of the 95%
confidence interval of two estimates, I am wondering now if there is a
way to retrieve the values of the boundaries of the confidence interval
in order to output them in a text file: any suggestion ?
cheers,
marco
Hi Marco,
marco kienzle wrote:
>
> Dear rooters,
>
> I am a new user of ROOT and didn't find answers to the following questions
> in the RootTalkDigest:
> - How do I get the variance-covariance matrix of the fit of a function to an
> histogram (TH1F) when I use the method Fit (hist->Fit("func");) ?
double matrix[n][n];
use gMinuit->mnemat(matrix,n);
> - Is there a method to draw 95% confidence interval of the prediction of the
> fitted function ?
>
use gMinuit->mncont
see an example in $ROOTSYS/tutorials/fitcont.C
Rene Brun
> thanks in advance,
> marco
--
____________________________________________________________________________
Marco Kienzle
Fisheries Research Services
Marine Laboratory
PO Box 101 Victoria Road
Aberdeen AB119DB
United Kingdom
direct: +44 (0) 1224 295421
tel: +44 (0) 1224 876544
fax: +44 (0) 1224 295511
http://www.marlab.ac.uk
This archive was generated by hypermail 2b29 : Sun Jan 02 2005 - 05:50:06 MET