Writing time series data to a netCDF file from workspace

I have a worspace variable containing time varying data of a parameter `p` obtained at different coordinate positions. The rows correspond to different coordinate positions of a grid and columns correspond to diferent time points. I would like to save this data in mat file to netCDF format. I've tried the following to write the workspace variable `time` following the examples provided here

header = ['x', 'y', 'z', '0.2s', '0.4s', '0.6s', '0.8s', '1.0s']
time = [0.2 0.4 0.6 0.8 1.0];
mydata = rand(10,8) %first 3 columns (x,y,z) coordinates next 5 time series data at 0.2,0.4,0.6,0.8,1 seconds

% define mode
ncid = netcdf.create('myfile.nc','CLOBBER');
dimid = netcdf.defDim(ncid,'my_dim',length(time))
varid = netcdf.defVar(ncid,'time','NC_BYTE',dimid)
netcdf.endDef(ncid)

% data mode
netcdf.putVar(ncid,varid,time)
netcdf.close(ncid)

% verify
ncid2 = netcdf.open('myfile.nc','NC_NOWRITE');
x = netcdf.getVar(ncid2,0);
whos x
netcdf.close(ncid2)

I'd like to ask for suggestions on how to write the rest of the data ( coordinates and time-varying data of `p` stored in `mydata`) in the same netcdf file.

[Deepa Maheshvare]

Suggestions on how to create different variables in a single file, if possible, will be useful.

Answer 1

[Bhupendra Prajapati]

You could create another netcdf file put write your data in that file and then merge it with your myfile.nc

Refer to the link below for instructions on merging.

https://www.mathworks.com/help/matlab/import_export/exporting-to-network-common-data-form-netcdf-files.html?s_tid=answers_rc2-3_p6_MLT#bsxb8lu-1

[Deepa Maheshvare]

Thanks . But isn't possible to create a second variable instead of creating 2 separate files?

[Deepa Maheshvare]

I would also like to know how to define attributes to a variable. For instance, I have to define the units of variable `time`.