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Hello, Each experiment has a given shift list, and the position for a given resonance for that shift list is the average over all the peakDims associated with that resonance, but weighted by spectrum as specified in the Experiment --> Spectra dialog in the top table in the Tolerances tab (the fourth/last column). So if you pick new peaks then it will affect the average only relative to the shift list of the corresponding experiment. (Tim could explain it better.) Wayne On Wed, 17 Mar 2010, Justin Lecher wrote: > Hi all, > > I need a little lesson about shift lists, because I am not sure whether > I mess up everything and I am doing right. > So I started the whole assignment using one shiftlist. Now I have > recorded an Chsqc, where there should be many peaks already assignened > so I created an synthetic shift list and and set it active for the spectra. > Am I right, that if I pick new peaks in the Chsqc and assign them to > resonances the mean shift for the resonances and the SD will change, > because it is independent from which shift list the shifts come from? Or > isn't it that way? > > Thanks for your help, > > justin > > -- > Justin Lecher > Institute for Neuroscience and Biophysics > ISB 3 - Institute for structural biochemistry > Research Centre Juelich GmbH, > 52425 Juelich,Germany > phone: +49 2461 61 5385 > > >