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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Luis -- Okay -- I had some time before leaving to download and look at your files. The problem is that the units of the two grids are not compatible. IDV strictly enforces unit compatibility when adding and subtracting. You have one parameter with units of "degrees" and the other has no units. You need to make these units a) real units and b) compatible, if you want to add them. Before writing new files, you can this this by editing your "a+b" formula to change the units: newUnit(a, "degK", "deg_K") + newUnit(b, "degK", "deg_K") I don't know if your data fields are both temperatures or what, but this will show you that by making compatible units, the summation can be forced to work... Good luck, tom On Tue, Nov 2, 2010 at 11:19 AM, Luis Del Castillo <luis.delcastillo@xxxxxxxxxxxx> wrote: > Nop not work, in each files exist one variable so when y try to add 34.5 + 3 > using add(S1, S2) the answer is 34.5 not 37.5 > > Luis > -- Tom Whittaker University of Wisconsin-Madison Space Science & Engineering Center (SSEC) Cooperative Institute for Meteorological Satellite Studies (CIMSS) 1225 W. Dayton Street Madison, WI 53706 USA ph: +1 608 262 2759
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