This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Hi Kevin, I didn't see your inquiry until just now, sorry (it was waiting in an unexpected department)! re: > I am wanting to exclude Alaska models from the NGRID filing via LDM, but > keep everything else. Is this related to the email that we got from Paul Wahner? > Specifically, !grib2/ncep/GFS/#160 > Since my experience with regular expressions is not very good, can you > tell me what the regular expression might be? > And I would enter it in ldmd.conf? Actually, the ~ldm/etc/ldmd.conf 'request' line syntax does not include the capability for a 'not', and it is likely that the regular expression that would exclude a particular grid would be cumbersome. An upstream LDM running LDM-6.4+, however, can restrict the data that will be sent to the downstream fairly easily. > Thanks! No worries. Sorry for the delay in responding. Cheers, Tom **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: VSU-302286 Department: Support Datastream Priority: Normal Status: Closed