From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: ** X-Spam-Status: No, score=2.1 required=5.0 tests=BAYES_50,FREEMAIL_FROM, HELO_NO_DOMAIN,MAILING_LIST_MULTI,RDNS_NONE,REPLYTO_WITHOUT_TO_CC, SPOOFED_FREEMAIL_NO_RDNS autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,6e2278eaed9619d6 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-06-14 15:57:03 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!fr.usenet-edu.net!usenet-edu.net!enst!enst.fr!not-for-mail From: "Gautier direct_replies_not_read" Newsgroups: comp.lang.ada Subject: Re: Discrete random with given distribution ? Date: Fri, 14 Jun 2002 22:56:02 +0000 Organization: ENST, France Sender: comp.lang.ada-admin@ada.eu.org Message-ID: Reply-To: comp.lang.ada@ada.eu.org NNTP-Posting-Host: marvin.enst.fr Mime-Version: 1.0 Content-Type: text/plain; format=flowed X-Trace: avanie.enst.fr 1024095422 56844 137.194.161.2 (14 Jun 2002 22:57:02 GMT) X-Complaints-To: usenet@enst.fr NNTP-Posting-Date: Fri, 14 Jun 2002 22:57:02 +0000 (UTC) Return-Path: X-Originating-IP: [217.162.208.156] X-OriginalArrivalTime: 14 Jun 2002 22:56:02.0921 (UTC) FILETIME=[A8797590:01C213F6] Errors-To: comp.lang.ada-admin@ada.eu.org X-BeenThere: comp.lang.ada@ada.eu.org X-Mailman-Version: 2.0.8 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: comp.lang.ada mail<->news gateway List-Unsubscribe: , Errors-To: comp.lang.ada-admin@ada.eu.org X-BeenThere: comp.lang.ada@ada.eu.org Xref: archiver1.google.com comp.lang.ada:25995 Date: 2002-06-14T22:56:02+00:00 tmoran: >Why not just use your second method (summing probabilities till >you hit a certain level) to calculate, at run time, the population >of a lookup table, then use the first method to speedily index into >it to pick a random element. And why not replace the loop by the traversal of a binary tree ? (I just don't like that lookup table...) ________________________________________________________ Gautier -- http://www.mysunrise.ch/users/gdm/gsoft.htm NB: For a direct answer, address on the Web site! _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com