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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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, > > > > I am trying to subtract a netCDF grid map from another netCDF grid map to > produce a difference netCDF grid map in the IDV. I am using "Layer > Difference" from Data -> Formulas -> Grids at the Dashboard, but apparently > I am able to get success. > > > > Would you please point me how I can produce a difference grid map from two > grid maps? I am using IDV version 4.0u1. > > > > I really appreciate your help. > Hi Tapash, Please reference the tutorial document: https://www.unidata.ucar.edu/software/idv/docs/workshop/formulas/SimpleFormulas.html Yuan > > > Thanks lot. > > > > Regards, Tapash > > Ticket Details =================== Ticket ID: FXH-373138 Department: Support IDV Priority: Normal Status: Closed