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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.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.
> Oh jeez, after all these emails?? Can you at least tell me if it is possible
> to subtract grids of different sizes? I know you can display them on top of
> one another so there must be something that in IDV that matches them up?
> Will saving them as a netcdf work? Or do both the whole datasets end up in
> the netcdf?
> Is there sound w/your movie?
> cheers,
> Heather
Hi Heather,
This is Yuan, I will take this question. If what you want is to do the
subtract of something like,a(x1, y1) - b(x2, y2) and x1 x2 are not equal, that
is what I understand as different sizes, you need to write a formula yourself,
it is not very difficult depends on your algorithm of subtraction and your
Jython (Python) experience. There is some document online you can reference.
Yuan
>
>
> address@hidden> wrote:
>
> > Unfortunately, I may not be able to look into this in great depth this
> > afternoon or tomorrow (time is very limited currently.)
> >
> > This is a shot in the dark and probably not very useful but check out this
> > screencast
> >
> >
> > http://motherlode.ucar.edu/repository/entry/show/RAMADDA/Unidata/Staff/Julien+Chastang/Screen+cast/AvgLayer.mov?entryid=7cc013c5-bee6-4dd8-8f42-f7462f205724
> >
> > It describes how to work with formulas (e.g differences, averages, etc.)
> > within the IDV. It may give you some hints.
> >
> > -Julien
> >
> >
> > > Ok, sorry about that. I'm cranking out plots right now and getting my
> > months
> > > mixed up. The actual months aren't important, just how to work with the
> > grid
> > > sizes.
> > >
> > > The question concerns this:
> > >
> > > How do I subtract (simple a-b) the NARR monthly mean files from the
> > > MM5-CCSM monthly files. They are of different grid sizes so I'm not sure
> > how
> > > to do this???
> > >
> > > I was really hoping to get this done today, my project is due tomorrow
> > > afternoon.
> > > Yes, I know, procrastination is bad...
> > >
> > > Also is there any kind of a ttest function within IDV??
> > >
> > > cheers,
> > > Heather
> > >
> > >
> > > address@hidden> wrote:
> > >
> > > > OK, but for the record your bundle refers to data from other months,
> > jan,
> > > > feb (e.g ts_mmean_MM5_feb_cur.nc) etc. That is why I was under the
> > > > impression there were several more files.
> > > >
> > > > > Hello,
> > > > > OK, I've uploaded them again:
> > > > > They are:
> > > > >
> > > > > ts_mmean_narr_dec.nc
> > > > >
> > > > > and
> > > > >
> > > > > ts_mmean_MM5_dec_cur.nc
> > > > >
> > > > > I am trying to a simple a-b function between the two files.
> > > > >
> > > > >
> > > > > address@hidden> wrote:
> > > > >
> > > > > > One. Just put them all there and let us know what are the file
> > names.
> > > > > >
> > > > > > > OK, which ones did you get?
> > > > > > > cheers,
> > > > > > > Heather
> > > > > > >
> > > > > > > address@hidden> wrote:
> > > > > > >
> > > > > > > > Not all of them.
> > > > > > > >
> > > > > > > > Please post your data
> > > > > > > > http://motherlode.ucar.edu/repository/alias/idvupload.
> > > > > > > >
> > > > > > > > > Hello,
> > > > > > > > > I was wondering if you received my data files? Let me know if
> > you
> > > > > > need me
> > > > > > > > to
> > > > > > > > > send them again?
> > > > > > > > > cheers,
> > > > > > > > > Heather
> > > > > > > > >
> > > > > > > > > address@hidden> wrote:
> > > > > > > > >
> > > > > > > > > > Hi Heather.
> > > > > > > > > >
> > > > > > > > > > I can't tell what is going on without the data.
> > > > > > > > > >
> > > > > > > > > > Please post your data here
> > > > > > > > > >
> > > > > > > > > > http://motherlode.ucar.edu/repository/alias/idvupload
> > > > > > > > > >
> > > > > > > > > > Thanks.
> > > > > > > > > >
> > > > > > > > > > -Julien
> > > > > > > > > >
> > > > > > > > > > > Full Name: Heather
> > > > > > > > > > > Email Address: address@hidden
> > > > > > > > > > > Organization: CU
> > > > > > > > > > > Package Version: 2.9u2 build date:2010-10-04 19:14 UTC
> > > > > > > > > > > Operating System: Mac OS X
> > > > > > > > > > > Hardware: Java: home:
> > > > > > > > > >
> > > > /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
> > > > > > > > version:
> > > > > > > > > > 1.6.0_22 j3d:1.5.2 fcs (build4)
> > > > > > > > > > > Description of problem: Creating display: Color-Shaded
> > Plan
> > > > View
> > > > > > > > > > > visad.SetException: visad.SetException: Gridded2DSet:
> > samples
> > > > do
> > > > > > not
> > > > > > > > form
> > > > > > > > > > a valid grid
> > > > > > > > > > > org.python.core.PyException
> > > > > > > > > > >
> > > > > > > > > > > Hi, only one of attachments went through, here's the
> > second
> > > > file.
> > > > > > > > > > >
> > > > > > > > > > > ******************
> > > > > > > > > > > Stack trace:
> > > > > > > > > > > Traceback (innermost last):
> > > > > > > > > > > File "<string>", line 1, in ?
> > > > > > > > > > > File "<string>", line 58, in sub
> > > > > > > > > > > at visad.Gridded2DSet.<init>(Gridded2DSet.java:99)
> > > > > > > > > > > at visad.Gridded2DSet.<init>(Gridded2DSet.java:56)
> > > > > > > > > > > at
> > > > > > ucar.unidata.data.grid.GridUtil.swapLatLonFF(GridUtil.java:6337)
> > > > > > > > > > > at
> > > > ucar.unidata.data.grid.GridUtil.swapLatLon(GridUtil.java:6238)
> > > > > > > > > > > at
> > ucar.unidata.data.grid.GridMath.doMath(GridMath.java:222)
> > > > > > > > > > > at
> > > > ucar.unidata.data.grid.GridMath.subtract(GridMath.java:131)
> > > > > > > > > > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> > > > Method)
> > > > > > > > > > > at
> > > > > > > > > >
> > > > > > > >
> > > > > >
> > > >
> > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> > > > > > > > > > > at
> > > > > > > > > >
> > > > > > > >
> > > > > >
> > > >
> > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> > > > > > > > > > > at java.lang.reflect.Method.invoke(Method.java:597)
> > > > > > > > > > >
> > > > > > > > > > > visad.SetException: visad.SetException: Gridded2DSet:
> > samples
> > > > do
> > > > > > not
> > > > > > > > form
> > > > > > > > > > a valid grid
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > Ticket Details
> > > > > > > > > > ===================
> > > > > > > > > > Ticket ID: MWJ-718630
> > > > > > > > > > Department: Support IDV
> > > > > > > > > > Priority: Normal
> > > > > > > > > > Status: Closed
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > Ticket Details
> > > > > > > > ===================
> > > > > > > > Ticket ID: MWJ-718630
> > > > > > > > Department: Support IDV
> > > > > > > > Priority: Normal
> > > > > > > > Status: Closed
> > > > > > > >
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > > > Ticket Details
> > > > > > ===================
> > > > > > Ticket ID: MWJ-718630
> > > > > > Department: Support IDV
> > > > > > Priority: Normal
> > > > > > Status: Closed
> > > > > >
> > > > > >
> > > > >
> > > > >
> > > >
> > > >
> > > > Ticket Details
> > > > ===================
> > > > Ticket ID: MWJ-718630
> > > > Department: Support IDV
> > > > Priority: Normal
> > > > Status: Open
> > > >
> > > >
> > >
> > >
> >
> >
> > Ticket Details
> > ===================
> > Ticket ID: MWJ-718630
> > Department: Support IDV
> > Priority: Normal
> > Status: Open
> >
> >
>
>
Ticket Details
===================
Ticket ID: MWJ-718630
Department: Support IDV
Priority: Normal
Status: Closed