mailRe: The Y-axis for the graph result of residue files denotes R1rho in a CPMG experiment.


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Posted by Edward d'Auvergne on September 04, 2013 - 09:28:
Hi,

The 'r2a' parameter is defined with:

self.PARAMS.add('r2a', scope='spin', default=15.0, desc='The
transversal relaxation rate for state A in the absence of exchange',
set='params', py_type=list, grace_string='\\qR\\s2,A\\N\\Q
(rad.s\\S-1\\N)', err=True, sim=True)

Can you open the Grace file in a text editor and find this R1rho text
and copy the line here?  If you look in all of the parameter
definitions, there is R1rho defined.  For the R1rho-type experiments
the relaxation in the absence of exchange, R1rho', is simply stored as
and reported as R2, just as in the CPMG-type experiments.  Could you
name the files affected and the directories they are located in?  This
is very confusing.

Regards,

Edward




On 4 September 2013 09:16, Troels Emtekær Linnet <tlinnet@xxxxxxxxx> wrote:
I made this analysis:

The state 'ini_setup.bz2' is after the setup of reading intensities
and making spectra settings.

In the the ''TSMFK01', model I have used the r2a parameter.
Is this reserved for R1rho ?

The "funny" thing is, that when I look in the folder for the other
models (parameter r2), the graph still is R1rho.
Is there a switch somewhere?

Best
Troels

---------------
import os
from auto_analyses.relax_disp import Relax_disp

# Load the initial state setup
state.load(state='ini_setup.bz2')

# Set settings for run.
results_directory = os.path.join(os.getcwd(),"model_sel_analyt")
pipe_name = 'base pipe'; pipe_bundle = 'relax_disp'
MODELS = ['R2eff', 'No Rex', 'TSMFK01', 'LM63', 'CR72', 'CR72 full', 'IT99']
GRID_INC = 21; MC_NUM = 10; MODSEL = 'AIC'

# Execute
Relax_disp(pipe_name=pipe_name, pipe_bundle=pipe_bundle,
results_dir=results_directory, models=MODELS, grid_inc=GRID_INC,
mc_sim_num=MC_NUM, modsel=MODSEL)
------------

Troels Emtekær Linnet


2013/9/4 Edward d'Auvergne <edward.dauvergne@xxxxxxxxx>:
Hi,

That's quite strange.  According to the parameter definitions in
specific_analyses.relax_disp.api:

self.PARAMS.add('r2', scope='spin', default=15.0, desc='The
transversal relaxation rate', set='params', py_type=list,
grace_string='\\qR\\s2\\N\\Q (rad.s\\S-1\\N)', err=True, sim=True)

That Grace string should simply produce R_2.  In which context do you see 
this?

Regards,

Edward


On 4 September 2013 08:37, Troels Emtekær Linnet <tlinnet@xxxxxxxxx> wrote:
Hi.

I noticed that the Y-axis for the graph result of residue files denotes 
R1rho.

Should the Y-axis not be labelled R_2^{eff} ??

Best
Troels Emtekær Linnet

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