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Re: how to list the axis values?
Hello Emanuele,
To get the axis info, you need to tell ferret the variable name too.
The following works (with coads_climatology.cdf). Sorry about the
wrapped lines, but I guess you'll see the solution :).
yes? use coads_climatology
yes? sh dat
currently SET data sets:
1> /usr/local/ferret/fer_dsets/data/coads_climatology.cdf
(default)
name title I J K
L
SST SEA SURFACE TEMPERATURE 1:180 1:90 ...
1:12
AIRT AIR TEMPERATURE 1:180 1:90 ...
1:12
SPEH SPECIFIC HUMIDITY 1:180 1:90 ...
1:12
WSPD WIND SPEED 1:180 1:90 ...
1:12
UWND ZONAL WIND 1:180 1:90 ...
1:12
VWND MERIDIONAL WIND 1:180 1:90 ...
1:12
SLP SEA LEVEL PRESSURE 1:180 1:90 ...
1:12
yes? list /i=1:3 x[g=sst] ! <======== (return the x axis of sst)
X
axis COADSX
DATA SET:
/usr/local/ferret/fer_dsets/data/coads_climatology.cdf
21E / 1: 21.00
23E / 2: 23.00
25E / 3: 25.00
yes?
Regards, Shankar.
D. Shankar Ph. (O): [91](832) 22 6253 * 4312/4400
Physical Oceanography Division, 22 1322 * 4312/4400
National Institute of Oceanography, (R): [91](832) 23 8208
Dona Paula, Fax : [91](832) 22 3340/9102
Goa 403 004, email : shankar@darya.nio.org
India. shankar@csnio.ren.nic.in
On Mon, 11 Mar 2002, emanuele lombardi wrote:
>
> Dear Ferreters,
> I'm sorry to annoy you asking a very simple question, but I'm in troubles.
>
> I use netcdf files and, from Ferret, I'm not able to list the values of
> the axis
> (coordinate variables in netcdf language).
>
> ncdump -v COADSX coads_climatology.cdf
> returns all the Longitude values of the netcdf file.
>
> Once in ferret I do
> yes? use coads_climatology.cdf
> but then I'm not able to know, let's say, the value of the 10th longitude.
> If I type
> yes? list/I=10 X
> VARIABLE : X
> axis ABSTRACT
> X : 10
> 10.00
> As you see i get a wrong value (10.00 is simply the "real" of 10) since
> the wanted longitude is 39 degrees_east
> If I type as follow I get another error:
> yes? list/I=10 COADSX
> **ERROR: variable unknown or not in data set: COADSX
>
> For sure I'm missing a very basic info, so I would really appreciate your help.
>
> Thank you very much from Italy,
> Emanuele Lombardi
>
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