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| The community-run support site for relax, a program for the study of molecular dynamics using experimental NMR data.
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== Software to use ==
SPARKY. In the extension menu.
In F1 mode, draw boxes in the empty regions for all spectra. You have a different error estimate for each spectrum, which relax handles.
It is a good idea to use the Sparky rm function to get the RMSD of the spectrum as a maximal noise estimate in several areas free of peaks.
If there are peaks which may be in noisier regions (eg near the water line) it can be a good idea to give those peaks separate errors by measuring the RMSD near those peaks seperately.
The error is equal to the baseplane RMSD times the number of 2D spectra points in the box.
Do this for PEAK HIGHTS determination.
The empty region RMSD is smaller than the random coil region, due to power conservation in the Fourier transform.
You can see this by dropping all the way ..→