From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 23691 invoked by alias); 9 Oct 2006 08:24:26 -0000 Received: (qmail 28729 invoked by uid 22791); 6 Oct 2006 15:10:07 -0000 X-Spam-Check-By: sourceware.org Message-ID: <20061006170949.s6j4rlqfsw80ssos@postino.fi.infn.it> Date: Mon, 09 Oct 2006 08:24:00 -0000 From: Elena Taddei To: gsl-discuss@sourceware.org Subject: too slow integration!! MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 7bit User-Agent: Internet Messaging Program (IMP) H3 (4.0.1) / FreeBSD-5.3 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-2.0.2 (postino.fi.infn.it [127.0.0.1]); Fri, 06 Oct 2006 17:09:49 +0200 (CEST) Mailing-List: contact gsl-discuss-help@sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gsl-discuss-owner@sourceware.org X-SW-Source: 2006-q4/txt/msg00002.txt.bz2 Hi, I need to integrate a function f many many times in order to find parameters that minimize a certain log(Likelihood). The function f has a finite range and a singularity in a point of this range (not known a priori). I've tried to use qagi algorithm to integrate that and it seems work but is too slow!! Do you know which is the best and quicker algorthm to integrate this kind of function? Maybe I could try to use even some monte_carlo tecniques such as vegas? Thank you, Elena ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.