On Tue, Nov 20, 2012 at 1:16 PM, Muhali <muh...@users.sf.net> wrote: > Adapting example_opendap.m as follows > > ---- > pkg load octcdf > nc = netcdf(ncfile='http://hycom.coaps.fsu.edu/thredds/dodsC/atl_ops','r'); > N=size(nc{'ssh'}) > ssh = ncread(ncfile, 'ssh', [1 1 1], [1 1 N(3)]) > ---- > > I get > > N = > > 730 1609 1678 > > error: Error while retrieving variable: NetCDF: Index exceeds dimension > bound. > error: called from: > error: /usr/local/octave-dev/share/octave/packages/octcdf-1.1.5/ncread.m > at line 51, column 3 > error: foo.m at line 5, column 5 > > The 4th argument of ncread is the 'count' vector, so it should be able read > N(3) variables. Or am I missing something? > > ncread from matlab adopted a different ordering convention than octcdf (which follows the original matlab toolbox from USGS). The order of dimensions are reversed. For example octcdf would report a file as time,lat,lon while ncread lon,lat,time. It is better not to mix ncread which direct calls to octcdf (it ends up to be confusing). If you want to use ncread and need to know the size of a variable, it is better to use ncinfo:
>> vinfo = ncinfo('http://hycom.coaps.fsu.edu/thredds/dodsC/atl_ops','ssh'); >> vinfo.Size ans = 1678 1609 730 Cheers, Alex ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev