Walter, I do not think we can "remove" Gaussian from the specification. It is already there. As a matter of fact we should try to clarify issues like this one, wherever there is a possibility for misinterpretation. For Fangyi's question I think the logically correct answer should be the second one: (PDF 0.0 0.01) It follows the concept of (leaf_name value) where "value" in this case consists of two numbers. Radek From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of Walter Katz Sent: Tuesday, March 16, 2010 6:25 AM To: RAO,FANGYI (A-USA,ex1); ibis-macro@xxxxxxxxxxxxx Subject: [ibis-macro] Re: question about Gaussian parameter Fangyi, One of the reasons why I have proposed removing Gaussian as a type in the new BIRD. Walter Walter Katz 303.449-2308 Mobile 720.333-1107 wkatz@xxxxxxxxxx www.sisoft.com -----Original Message----- From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]On Behalf Of fangyi_rao@xxxxxxxxxxx Sent: Tuesday, March 16, 2010 1:24 AM To: ibis-macro@xxxxxxxxxxxxx Subject: [ibis-macro] question about Gaussian parameter Hi, Experts; If an AMI model has a parameter (PDF (Format Gaussian 0.0 0.01)), what should the Init input parameter string be? Should it be (PDF Gaussian 0.0 0.01) or (PDF 0.0 0.01) or other format? Thanks in advance, Fangyi