[Mesquitelist] A problem in Ancestral State reconstruction.

[Wayne Maddison]

This appears to be a problem that we recently fixed for the next 
version.  Would it be possible for you to send me the file (straight 
to me, not the list) so that we could confirm we understand it?
thanks,
Wayne


At 9:38 PM +0800 20.11.2009, Yi Kong wrote:
>Dear colleague,
>
>I intend to employ Ancestral state reconstruction  package in 
>mesquite in my analysis. However, a fatal problem obstructs my 
>calculations.
>
>I import 500 trees from a Bayesian *.t file, then create a character 
>matrix with 35 states, standard category and unorder. Subsequently, 
> I click trace character over tree. Every steps seem normal until I 
>choose "summarize state changes over trees" (Parsimonious model) 
>Clicking this button, calculation begins. When number reaches tree 
>69, a dialog box jumps out and calculation stops. The warning 
>contents lists below.
>
>There has been a problem starting a module (class 
>java.lang.ArithmeticException).  (module: Summarize State Changes 
>Over Trees; arguments: null; module being started: null; EXCEPTION: 
>/ by zero; exception class class java.lang.ArithmeticException [1])
>Please send a report of this crash to the Mesquite server, to help 
>us debug it and improve Mesquite.  None of your data will be sent, 
>but your log file up to this point will be sent.
>
>
>It is very strange that I can hardly find what lead to this problem. 
>Would you please give me some advice to deal with this problem?
>Your assistance is very important to me.
>
>Best Wishes!
>
>Yours sincerely,
>Yi Kong
>
>--
>Yi Kong
>P.P.BOX 159
>No.1 Wenyuan road,
>College of Life Science,
>Nanjing Normal University,
>Nanjing, Jiangsu province 210046,
>P.R. China
>
>
>
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-- 
--------------------------------------------------------
Wayne Maddison
  Professor and Canada Research Chair
          Depts. of Zoology and Botany and
          Biodiversity Research Centre
  & Director
          Beaty Biodiversity Museum
  6270 University Boulevard
  University of British Columbia
  Vancouver, BC  V6T 1Z4   Canada

email: wmaddisn at interchange.ubc.ca   FAX: +1 604 822-2416

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