Greetings Vanessa, There may be a formula already defined in the IDV that you can use. However, you'll need to aggregate your grib files. You can load multiple grib files into the IDV as one data source by doing the following: in the Data Choosers, select the grib files you'd like to load and then set the Data Source Type to Aggregate Grids by Time before adding the source. Once you have added the source, you can use the formula "Grids -> Time Steps -> Total sum over time steps" to compute the total sum of a field over the grids you've loaded into the IDV. Cheers, Sean > Full Name: Vanessa Vincente > Email Address: address@hidden > Organization: Colorado State University > Package Version: 3.0u3 build date:2012-06-24 07:18 UTC > Operating System: Mac OS X > Hardware: Java: home: > /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home version: > 1.6.0_31 j3d:1.5.2 fcs (build4) > Description of problem: > > Creating display: Color-Filled Contour Plan View > TypeError: add() takes at most 3 arguments (4 given) > org.python.core.PyException > > Problem: I am trying to add more than three seperate Precipitation GRIB > files together. For example, if I wanted "Total Precipitation" > over a 6-hour period, I would add 6 seperate GRIB files. Is there a > way I can write a formula that will add more than 3 seperate files? > > Thank You > > ****************** > Stack trace: > Traceback (most recent call last): > File "<string>", line 1, in <module> > TypeError: add() takes at most 3 arguments (4 given) > > > Ticket Details =================== Ticket ID: UIE-572577 Department: Support IDV Priority: Normal Status: Open
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