Hi, In that case you will be optimizing everything, modelfree models and tensor, at the same time, correct? So, the optimization will run not only on the diffusion tensor parameters but also on the nature of the diffusion model itself, is this it? Regards TP
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Edward d'Auvergne Sent: segunda-feira, 14 de Dezembro de 2009 15:46 To: Tiago Pais Cc: [email protected] Subject: Re: AIC to select diffusion model Hi, I haven't found a way to make this totally obvious yet. To select between these global models, you need to set up the global model. For this, the diffusion tensor should not be fixed. If not fixed, then the tensor is part of the model and all the model-free models for all spins are linked together with the diffusion tensor into the one global model. So for each data pipe containing the selected model-free models, you just need to call the user function: relax> fix('all', fixed=False) I hope this helps! Regards, Edward 2009/12/14 Tiago Pais <[email protected]>: > Hello everyone, > > Can anyone help me on how to use AIC to select between diffusion models > instead of model free models (modelsel.py). Couldn't find any sample script > that would give me a clue on this. > > Best regards > > TiagoP > > > > ************************************** > > Tiago Pais, PhD. student > > Cell Physiology & NMR > > Instituto de Tecnologia Química e Biológica-Oeiras > > > > _______________________________________________ > relax (http://nmr-relax.com) > > This is the relax-users mailing list > [email protected] > > To unsubscribe from this list, get a password > reminder, or change your subscription options, > visit the list information page at > https://mail.gna.org/listinfo/relax-users > > _______________________________________________ relax (http://nmr-relax.com) This is the relax-users mailing list [email protected] To unsubscribe from this list, get a password reminder, or change your subscription options, visit the list information page at https://mail.gna.org/listinfo/relax-users
