Dear Andreas, You mentioned a patch that allowed you to record c and n. Do you still have that patch or do you remember who provided it? Without that informaton it is a bit difficult to reconstruct why the feature is not in NEST. Can you apply the patch to current NEST? Best regards, Hans Ekkehard On 25 Aug 2019, at 19:53, anduls@web.de<mailto:anduls@web.de> wrote: Dear all, I wrote some days ago the following code: at the moment I still use the Nest version 2.12. I onces used a patch to take adavante of : I now usd version 2.18, and the synapse has the paramete c und n but not the weigth recorder. So is this patch still not implemented ? wr = nest.Create('weight_recorder') nest.CopyModel('stdp_dopamine_synapse', syn_stdp, {'Wmax':1000.,'weight_recorder': wr[0]}) nest.SetDefaults(syn_stdp,'vt',voltrans[0]) # work around, use setDefaults with ,key,val, instead the entire para d= nest.GetStatus(wr[0]['events'] d['n'] and d['c'] gave the recorded eligibility trace and neuromodulator concentration. Thanks and regards, Andreas Schulz _______________________________________________ NEST Users mailing list -- users@nest-simulator.org<mailto:users@nest-simulator.org> To unsubscribe send an email to users-leave@nest-simulator.org<mailto:users-leave@nest-simulator.org> -- Prof. Dr. Hans Ekkehard Plesser Head, Data Science Section Faculty of Science and Technology Norwegian University of Life Sciences PO Box 5003, 1432 Aas, Norway Phone +47 6723 1560 Email hans.ekkehard.plesser(a)nmbu.no Home http://arken.nmbu.no/~plesser