[Mesquitelist] A problem in Ancestral State reconstruction.

[Yi Kong]

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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