Re: Reading special dataset with addfile

Use string referencing to read the variable into memory. The file
variable names can include periods, but the memory variable names can
not (I think).

http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/NclVariables.shtml#StringRef

Here is a live example made by editing "plant.start" into an existing CDL file:

ncl 0> f = addfile ("test.nc", "r")
ncl 1> varname = "plant.start"
ncl 2> x = f->$varname$
ncl 3> printVarSummary (x)

Variable: x
Type: float
Total Size: 259200 bytes
            64800 values
Number of Dimensions: 2
Dimensions and sizes: [lat | 180] x [lon | 360]
Coordinates:
            lat: [-89.5..89.5]
            lon: [ 0.5..359.5]
Number Of Attributes: 2
  units : mm
  _FillValue : -9.99e+08
ncl 4>

The same method also works for file variable attributes and memory
variable attributes.

--Dave

On Wed, Mar 28, 2012 at 8:50 PM, Xin Xi <xxi@gatech.edu> wrote:
> Hi, there
> I have a dataset (netcdf format) with parameters named as "plant.end",
> "harvest.start" and "harvest.end", etc. While using add_file, it reported
> errors due to the naming of the parameters - with dot (.) or reserved
> character ("end"). Any idea what I can do to it, other than go through the
> trouble of revising the netcdf file?
> Thanks!
> Xin
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Received on Wed Mar 28 21:23:18 2012