Hi Nicholas,

Check the  "Monotonic shape" and "Representative isotope" parameters of the 
deisotoper module.
I think this should solve your problem.

Tomas


On Jul 28, 2011, at 12:17 AM, Nicholas Welborn Beeson wrote:

> 
> I am running experiments which have pure C13 samples, with a small fraction
> of C12. The "deisotoper" functions find the parent peak (at n) and daughter
> peaks at n + 1. I need to find the daughter peaks at n - 1.
> 
> Before I spend time modifying the code, I wondered if I am missing
> something. Is there a function that does this? How?
> 
> If not can someone point me to the spot in the code where n + 1 is
> calculated, so I can modify it to n - 1?
> 
> Thank you, Nicholas Beeson, Ph.D.
> 
> 
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===============================================
Tomas Pluskal
G0 Cell Unit, Okinawa Institute of Science and Technology
1919-1 Tancha, Onna-son, Okinawa 904-0412, Japan
TEL:  +81-98-966-8684





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