"Error: using netcdflib 'dimids' should be double precision" when trying to create variable in NetCDF file
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I'm trying to create a NetCDF file of some timeseries data. I've successfully defined the dimensions and global attributes for my data, but when I try to write my first variable, I get: Error using netcdflib 'dimids' should be double precision.
This is the code I have written to create the variable, and it's the third line that produces the error:
netcdf.reDef(ncid);
nccreate('TVC_Jan2018.nc','Shortwave');
varid = netcdf.defVar(ncid,'Shortwave','double',['lon',1,'lat',1,'time',744]);
nccreate(ncid,varid,'Dimensions',{'lon',1,'lat',1,'time',sz},'Format','classic','Datatype','double');
netcdf.putAtt(ncid,varid,'long_name','Incoming Shortwave Raditation');
netcdf.putAtt(ncid,varid,'units','W m^–2');
netcdf.putAtt(ncid,varid,'mode','time varient');
for t = 1:sz
ncwrite('TVC_Jan2018.nc','Shortwave',MetData_Jan(t,5));
end
netcdf.endDef(ncid);
I've googled and the default precision for numbers in Matlab should be double, so I have no idea where this error is coming from.
2 Comments
Nitish Nalan
on 28 Aug 2020
Hi Victoria,
Could you please try the script mentioned below, and let me know if this helps you.
clc
clear
lon = 1;
lat = 1;
time = 744
mcid = netcdf.create('Example_test.nc','NC_WRITE');
dimLon = netcdf.defDim(mcid,'lon',lon);
dimLat = netcdf.defDim(mcid,'lat',lat);
dimTime = netcdf.defDim(mcid,'time',time);
varid = netcdf.defVar(mcid,'Shortwave','NC_DOUBLE',[dimLon dimLat dimTime]);
netcdf.endDef(mcid);
ncdisp('Example_test.nc');
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