You need to add the toolbox octcdf

http://modb.oce.ulg.ac.be/mediawiki/index.php/NetCDF_toolbox_for_Octave

Dear Prof.

I have Installed the Octave in Ubuntu and the packages, but when I tried the first command : nc=netcdf('wm_20110101.nc'.'r'); It has not shown any data in that nc file. Is there any command to show the data like the ferret.

Check first that octcdf is correctly installed. It you type

octave:1> ver

you should get something like

----------------------------------------------------------------------

GNU Octave Version 3.4.3

GNU Octave License: GNU General Public License

Operating System: Linux 3.0.0-24-generic #40-Ubuntu SMP Tue Jul 24 15:36:59 UTC 2012 i686

----------------------------------------------------------------------

Package Name | Version | Installation directory

--------------+---------+-----------------------

octcdf *| 1.1.4 | .../share/octave/packages/octcdf-1.1.4

If you do have octcdf insalled, read again the link I sent to learn the basics on how to read netcdf data

An escample for that dataset will be

nc=netcdf('wm_20110101.nc'.'r');

lon=nc{'lon'}(:);

lat=nc{'lat'}(:);

swh=nc{'swh}(:);

scatter(lon,lat,6,swh)

Regards

Andres

Dear Sir,

I am Chaitanya,............

I Just installed Octave and few octave packages in mac OS X 10.9.5.

I am also facing same problem with netcdf file accessing in Octave.

here are the version details. 

octave:1> ver

----------------------------------------------------------------------

GNU Octave Version 3.8.2

GNU Octave License: GNU General Public License

Operating System: Darwin 13.4.0 Darwin Kernel Version 13.4.0: Wed Mar 18 16:20:14 PDT 2015; root:xnu-2422.115.14~1/RELEASE_X86_64 x86_64

----------------------------------------------------------------------

Package Name  | Version | Installation directory

--------------+---------+-----------------------

     ncarray  |   1.0.3 | /opt/local/share/octave/packages/ncarray-1.0.3

      netcdf  |   1.0.7 | /opt/local/share/octave/packages/netcdf-1.0.7

      octcdf  |   1.1.8 | /opt/local/share/octave/packages/octcdf-1.1.8

-------------------------

even though octcdf is installed its is showing the following error.

------------------

octave:2> ncsss=netcdf('sss_cars_filled.nc','r')

error: 'netcdf' undefined near line 1 column 7

---------------------

can you please help me..........

with data.nc your dataset, the command should be

Hi,

think you should use netcdf_open and netcdf_getVar command

(1)check which variable are available

ncdisp('data.nc')

(2) Open the file

fid=netcdf_open('data.nc','NC_NOWRITE');

(3) Extract the variable

latn=netcdf_getVar(fid,1);

(4) close the file

ncdf_close(fid)

there are good explanation here

https://github.com/Alexander-Barth/octave-netcdf/wiki

Cheers,

JF

Dear Chaitanya Akurathi ,

don' forget to load the package, for instance:

>> pkg load netcdf

then octave will recognize the package and you can use it.

good luck,