Dear Rene, Maybe my mailer has screwed up, or I misunderstood, but I did not receive the attatchment Spectrum.root or Peakdec1.C that you mentioned. Could you post the mail aagin. Many thanks, Karl Hauschild On Tue, 30 Jan 2001, Rene Brun wrote: > Hi Roberto, > > You may be interested to look at the class TSpectrum. See > > http://root.cern.ch/root/htmldoc/TSpectrum.html > > This class is based on an original implementation by Miroslav Morhac. > References are given in this web page. In particular: > > M.Morhac et al.: Efficient one- and two-dimensional Gold > deconvolution and its application to gamma-ray spectra > decomposition. Nuclear Instruments and Methods in Physics > Research A 401 (1997) 385-408. > > There are examples of deconvolutions that you can download from: > > ftp://root.cern.ch/root/SpectrumDec.ps.gz > > In the attachment you will find > - a macro example Peakdec1.C > - a file Spectrum.root used by the macro. > > Rene Brun > > > Roberto Catanuto wrote: > > > > I need to make a convolution of aa landau of a landau with a gaussain and > > then: > > > > * draw this function > > * fit a set of experimental data with this function > > > > Pleas, note that i do not have an analytical expression of it since it is not > > possible to calculate the integral. > > May you address me to some "root" capabilities to overcome this problem or > > tell me who knows something about that? > > Thanks a lot. > > > > -- > > Roberto Catanuto > > INFN, Milan > > ITALY > > > > > ========================================================================== CEA Saclay, DAPNIA/SPhN Phone : (33) 01 69 08 7553 Bat 703 - l'Orme des Merisiers Fax : (33) 01 69 08 7584 F-91191 Gif-sur-Yvette E-mail : khauschild@cea.fr France karl_hauschild@yahoo.co.uk WWW: http://www-dapnia.cea.fr/Sphn
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