Alexandar Hansen wrote:
On 11/6/06, *Alexandar Hansen* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Whoa! I thought I had changed my 'runs' lines to not choose
anything higher than tm3. I tried what you said and reduced them
models to tm0-tm3 and it still failed. Through some process of
elimination, the one that spits out the error is only tm3 (tm, S2,
and Rex). tm2 finishes without any error.
I received another chi-squared = infinity value when running the
prolate, oblate, and ellipsoid models. I used only tm0, tm1, and tm2
for the local_tm selection and then I used m0-m5 for the diffusion
model selection. The chi-square = infinity error only occured on the
second round of the minimization for prolate (ie full_analysis.py
finished twice but failed the 3rd time for prolate) and on the first
round for oblate and ellipsoid. The sphere model finished without an
error.
Dear Alex Ed and Chris
This is the regression which I found via my first regression test. I
will try and backport the fix to the 1.2 and 1.3 branches in the next
couple of hours. Unfortunatley I can't do it immediately as the machine
I use for external ssh access here is not responding ;-) The hotfix is
to find the function isInf in float.py and replace it with
def isInf(obj):
''' check to see if a python float is an infinity
the check returns true for either positive or negative infinities
obj -- float object to check for infinity
returns -- True if object is an infinity
throws -- throws a TypeError if obj isn't a python float
'''
# bad result for code checking
result = None
# check to see if exponent is all ones (excluding sign bit)
# if exponent is not all ones this can't be a Inf
if not isExpAllOnes(obj):
result = False
else:
# get the mantissa as a byte array properly masked
manBytes = getMantissaBytes(obj)
for byte in manBytes:
#check if any of the unmasked mantissa bytes are zero
# to be a NaN the mantissa must be zero
if byte > 0:
result = False
break
result = True
return result
regards
gary
--
-------------------------------------------------------------------
Dr Gary Thompson
Astbury Centre for Structural Molecular Biology,
University of Leeds, Astbury Building,
Leeds, LS2 9JT, West-Yorkshire, UK Tel. +44-113-3433024
email: [EMAIL PROTECTED] Fax +44-113-2331407
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