Hi David,
Thanks very much for looking at this so quickly. I checked out the latest 
build, TPP v5.2.1-dev Flammagenitus, Build 202001280920-8004, and that has 
resolved the issue.
Cheers,
Alex

On Tuesday, January 28, 2020 at 12:29:05 PM UTC-8, David Shteynberg wrote:
>
> Hi Alex,
>
> Thanks for sharing your file.  I have confirmed that the latest version of 
> the code (SVN revision 8004) has corrected this problem.  Please update 
> your TPP software to latest SVN revision (or official release.)
>
> Cheers,
> David
>
> On Tue, Jan 28, 2020 at 8:57 AM Alex Zelter <aze...@uw.edu <javascript:>> 
> wrote:
>
>> I'm running into the following error when trying to use xinteract to 
>> process Kojak 2.0 results. 
>> The command I'm running is:
>> /usr/local/tpp/bin/xinteract -Ninteract.pep.xml -p0 -l1 -eT 
>> -D/path/to/database.fasta -PPM -OAPdp -drandom_ -ip ./kojak-output.pep.xml
>>
>> INFO: Processing xl MixtureModel ...
>>  PeptideProphet  (TPP v5.2.1-dev Flammagenitus, Build 201908090730-7945 
>> (Linux-x86_64)) AKeller@ISB
>>  read in 0 1+, 34 2+, 11290 3+, 7625 4+, 2948 5+, 874 6+, and 13 7+ 
>> spectra.
>> Initialising statistical models ...
>> Found 13541 Decoys, and 9243 Non-Decoys
>> Iterations: DEBUG HERE ...
>> ERROR: nan detected in NonParametricDistribution ...
>>
>> command "/usr/local/tpp/bin/PeptideProphetParser 'interact.pep.xml' 
>> MINPROB=0 PPM ACCMASS NONPARAM DECOYPROBS DECOY=random_" exited with 
>> non-zero exit code: 256
>> QUIT - the job is incomplete
>>
>> This was previously working for me using TPP v5.2.0-b1 Flammagenitus 
>> Pre-release Beta, Build 201809101205-7809 (Linux-x86_64))
>>
>> INFO: Processing xl MixtureModel ...
>>  PeptideProphet  (TPP v5.2.0-b1 Flammagenitus Pre-release Beta, Build 
>> 201809101205-7809 (Linux-x86_64)) AKeller@ISB
>>  read in 0 1+, 34 2+, 11290 3+, 7625 4+, 2948 5+, 874 6+, and 13 7+ 
>> spectra.
>> Initialising statistical models ...
>> Found 13541 Decoys, and 9243 Non-Decoys
>> Iterations: .........10.........20......
>> WARNING: Mixture model quality test failed for charge (1+).
>> WARNING: Mixture model quality test failed for charge (2+).
>> WARNING: Mixture model quality test failed for charge (7+).
>> model complete after 27 iterations
>> INFO: Processing loop MixtureModel ...
>>
>> etc. 
>>
>> If anyone has any ideas why I am running into this error with the new 
>> build I'd be very grateful!
>> Thanks!
>> Alex
>>
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