Rasmus, likely in the function getFilteredRefExperiments() in ccpnmr/analysis/core/ExperimentBasic.py, which seems to have had a big rewrite at some point in 2.4.2.

Work-around for now:

At the Python prompt, after you’ve loaded the spectra (I am typing triple > below but they might get converted to triple | by email):

>>> e = top.nmrProject.findFirstExperiment(serial=S)

>>> nep = top.project.findFirstNmrExpPrototype(serial=312)

>>> ref = nep.findFirstRefExperiment(name='C[DQ(CC)]_C.through-space’)

>>> e.refExperiment = ref

Here S is whatever the serial number is for the experiment. (You can figure out what this is in the first column in the Experiments —> Experiments dialog in the Experiments tab.) And in the “ref =“ line the alternative is (small “c” versus big “C” at the start):

>>> ref = nep.findFirstRefExperiment(name=‘c[DQ(CC)]_C.through-space’)

On 8 May 2017, at 18:05, Brian Smith <[log in to unmask]> wrote:

Hi Ying,

It's almost certainly a bug rather than intended. The experiment prototype selection syntax tries to do some logic to filter the experiments that are presented through the GUI menus, but it gets caught out quite often, and I can imagine that an update to this code could have had an unexpected consequence.

Hopefully Rasmus can identify the bug giving rise to your problem.

Dr. Brian O. Smith --------------------------- Brian Smith at glasgow ac uk
Institute of Molecular, Cell and Systems Biology & School of Life Sciences,
College of Medical, Veterinary & Life Sciences,
Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
Tel: 0141 330 5167/6459/3089
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