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Thanks Mark! I will check it out.
Don On Thu, 16 Aug 2001 Mark.Fisher@enron.com wrote: < < Don < < If you don't have censored data then the following reference should help. < < Thoman, Bain, and Antle. 1969. Inferences on the parameters of the Weibull < distribution. Technometrics Vol 11, No 3. < < Mark Fisher < Enron Wind < < < < < < "D. Mckenzie" <dmck@u.washington.edu<@lists.biostat.wustl.edu on 08/15/2001 < 05:05:08 PM < < Sent by: s-news-owner@lists.biostat.wustl.edu < < < To: s-news group <s-news@wubios.wustl.edu< < cc: < < Subject: [S] confidence intervals for Weibull shape parameter < < < Splus 2000 r3. < < I have fit a 2-parameter Weibull distribution to a data vector (fire-free < intervals in forests) and would like to compute the probability that the < shape parameter is greater than 1. I can use bootstrap() [I presume] to < compute the standard error. Is there a closed expression for CIs? (I < imagine a normal approximation would be pretty lame here). < < Thanks in advance for any suggestions. < < _______________________________________________________________________ < < DON MCKENZIE < < Research Ecologist < College of Forest Resources, Box 352100 < University of Washington < Seattle, WA 98195 < < 206.616.4095 < dmck@u.washington.edu < < _______________________________________________________________________ < < < --------------------------------------------------------------------- < This message was distributed by s-news@lists.biostat.wustl.edu. To < unsubscribe send e-mail to s-news-request@lists.biostat.wustl.edu with < the BODY of the message: unsubscribe s-news < < < < < < ********************************************************************** < This e-mail is the property of Enron Corp. and/or its relevant affiliate and may contain confidential and privileged material for the sole use of the intended recipient (s). Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender or reply to Enron Corp. at enron.messaging.administration@enron.com and delete all copies of the message. This e-mail (and any attachments hereto) are not intended to be an offer (or an acceptance) and do not create or evidence a binding and enforceable contract between Enron Corp. (or any of its affiliates) and the intended recipient or any other party, and may not be relied on by anyone as the basis of a contract by estoppel or otherwise. Thank you. < ********************************************************************** <
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