mailRe: two questions: hybrid analysis and convergence problems


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Posted by Douglas Kojetin on June 25, 2007 - 16:11:
Hi Edward,

Once I figure out how to print the AIC and k values, I will send them along. If you have a script example of this, it will save me some time [I've been working on this for an hour or so now without any luck].

Doug


On Jun 25, 2007, at 9:01 AM, Edward d'Auvergne wrote:

Hi,

Would you be able to print the AIC and k values as well?  k is the
number of parameters in the model.  The places where the chi-squared
value increases rather than decreases is because of a collapse in
model complexity.  If you plot the chi2, AIC, and k values verses
iteration number, like I did in my thesis in figures 7.3 and 7.4
(http://eprints.infodiv.unimelb.edu.au/archive/00002799/), you'll see
what is happening there.  The plots should help in figuring out
exactly what is happening.

Regards,

Edward


On 6/25/07, Douglas Kojetin <douglas.kojetin@xxxxxxxxx> wrote:
Update:  I figured out the problem.  I needed to use the 'opt'
directory for the results.read() call, not 'aic':

#--start of GOOD code
import glob
runs = glob.glob('prolate/round_*')

# Loop over the runs.
for name in runs:
     print name
     run.create(name, 'mf')
     results.read(run=name, file='results', dir=name+'/opt')
     chisq=self.relax.data.chi2[name]
     print "%s: %1.10f" % (name, chisq)
#--end

Here is the list of chi2 values.  I used 30 decimal points for the
chi2 values -- let me know if you would like something different.

"""
prolate/round_1: 785.330531871414336819725576788187
prolate/round_2: 786.656854782415166482678614556789
prolate/round_3: 784.104495289329975094005931168795
prolate/round_4: 783.543316702498373160779010504484
prolate/round_5: 786.500523476859029869956430047750
prolate/round_6: 784.433290432082458210061304271221
prolate/round_7: 786.264734828735640803643036633730
prolate/round_8: 785.887140331052023611846379935741
prolate/round_9: 785.887140331170371609914582222700
prolate/round_10: 785.887140331282466831908095628023
prolate/round_11: 785.887140331283262639772146940231
prolate/round_12: 785.887140331282807892421260476112
prolate/round_13: 785.887140331283376326609868556261
prolate/round_14: 785.887140331282921579258982092142
prolate/round_15: 785.887140331282353145070374011993
prolate/round_16: 785.887140331283262639772146940231
prolate/round_17: 785.887140331052364672359544783831
prolate/round_18: 785.887140331284172134473919868469
prolate/round_19: 785.887140331283262639772146940231
prolate/round_20: 785.887140331282694205583538860083
prolate/round_21: 785.887140331284967942337971180677
prolate/round_22: 785.887140331337491261365357786417
prolate/round_23: 785.887140331283944760798476636410
prolate/round_24: 785.887140331283376326609868556261
prolate/round_25: 785.887140331282921579258982092142
prolate/round_26: 785.887140331282353145070374011993
prolate/round_27: 785.887140331283262639772146940231
prolate/round_28: 785.887140331052364672359544783831
prolate/round_29: 785.887140331284172134473919868469
prolate/round_30: 785.887140331283262639772146940231
prolate/round_31: 785.887140331282694205583538860083
"""


On Jun 25, 2007, at 3:10 AM, Edward d'Auvergne wrote:

> On 6/25/07, Douglas Kojetin <douglas.kojetin@xxxxxxxxx> wrote:
>> Hi Edward,
>>
>> I'm trying to write a script to calculate the chisq values for each
>> of the prolate rounds, but I'm having some trouble as I'm not 100%
>> familiar with the relax subroutines.
>
> Your code is almost there.  I think I know where the script failed
> though.
>
>
>> #--start
>> import glob
>> runs = glob.glob('prolate/round_*')
>>
>> # Loop over the runs.
>> for name in runs:
>>      name=name+'/aic'
>>      run.create(name, 'mf')
>>      results.read(name)
>
> This should all be ok.
>
>>      chi2=self.relax.data.chi2[run]
>
> Here the 'run' variable should be replaced by 'name'.
>
>
>>      print "%s: %1.20f" % (name, chi2)
>>
>> #--end
>
> This should also work.
>
>
>> But this does not seem to work. Can someone help me with the proper
>> code to extract chisq values from multiple runs?
>
> If the script fails with the fix, would you be able to attach a print > out of the error message to help in solving where the script failed?
>
> Cheers,
>
> Edward






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