relax SVN archive

Inverted the input to atan2() function in specific_analyses/relax_disp/data.py.

This has no influence on the system tests.

sr #3124(https://gna.org/support/?3124): Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
sr #3138(https://gna.org/support/?3138): Interpolating theta through spin-lock offset [Omega], rather than spin-lock field strength [w1].

Changed interpolation function from offset to spin lock field strength, to plot R1rho R2 as function of effective field.

sr #3124(https://gna.org/support/?3124): Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
sr #3138(https://gna.org/support/?3138): Interpolating theta through spin-lock offset [Omega], rather than spin-lock field strength [w1].

Made both interploation functions of the spin-lock field strength and spin-Ãlock offset return the offset data.

This is make it possible to switch between the interpolating functions, when plotting R1rho graphs.

This is necessary to produce the R2 as function of effective field in rotating frame w_eff, and to produce
R1rho as function of theta, when ramping the spin-lock offset.

These graphs can be seen at:
http://wiki.nmr-relax.com/Matplotlib_DPL94_R1rho_R2eff

sr #3124(https://gna.org/support/?3124): Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
sr #3138(https://gna.org/support/?3138): Interpolating theta through spin-lock offset [Omega], rather than spin-lock field strength [w1].

Moved the file_name creation out of the interpolate function, to make it a general function for interpolating.

sr #3124(https://gna.org/support/?3124): Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
sr #3138(https://gna.org/support/?3138): Interpolating theta through spin-lock offset [Omega], rather than spin-lock field strength [w1].

Fix for sending the correct data structures to target function, and fix for the spin index which is always zero in graph production.

sr #3124(https://gna.org/support/?3124): Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
sr #3138(https://gna.org/support/?3138): Interpolating theta through spin-lock offset [Omega], rather than spin-lock field strength [w1].

Hard-coded restriction of R1rho extra plotting to model DPL94, TP02, TAP03, MP05, NS_R1RHO_2SITE.

sr #3124(https://gna.org/support/?3124): Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
sr #3138(https://gna.org/support/?3138): Interpolating theta through spin-lock offset [Omega], rather than spin-lock field strength [w1].

Added NMR library function to convert the given frequency from rad/s to ppm units.

sr #3124(https://gna.org/support/?3124): Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
sr #3138(https://gna.org/support/?3138): Interpolating theta through spin-lock offset [Omega], rather than spin-lock field strength [w1].

Added an intermediate attempt to show the back_calculated data in the graph for R1rho R2 as function of the effective field in rotating frame: w_eff.

The graph is aiming for the representation of Figure 2 in Kjaergaard et al 2013. (http://dx.doi.org/10.1021/bi4001062).
The figure can be seen at https://gna.org/support/download.php?file_id=20208.

It becomes clear, that it is not neccessary interpolate through the spin-lock offset, but it is suffucient to interpolate through the spin-lock field strengths.
The necessary step was the extraction of the effective effective field in rotating frame, w_eff.

In earlier attempt is shown at:
http://wiki.nmr-relax.com/File:Matplotlib_52_N_R1_rho_R2eff_w_eff.png

This though show lines for 6 offset values.
The question is how to show the single line of interpolation.

sr #3124(https://gna.org/support/?3124): Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
sr #3138(https://gna.org/support/?3138): Interpolating theta through spin-lock offset [Omega], rather than spin-lock field strength [w1].

Added the the back_calculated R_2 as function of effective field in rotating frame: w_eff.

R1rho R_2 is defined as:
R_2 = R1rho / sin^2(theta) - R_1 / tan^2(theta) = (R1rho - R_1 * cos^2(theta) ) / sin^2(theta)

This is described more at:
http://wiki.nmr-relax.com/DPL94#Equation_-_re-writed_forms

sr #3124(https://gna.org/support/?3124): Grace graphs production for R1rho analysis with R2_eff as function of Omega_eff.
sr #3138(https://gna.org/support/?3138): Interpolating theta through spin-lock offset [Omega], rather than spin-lock field strength [w1].

Some Python 3 fixes as identified by the 2to3 script.