RE: How to append new variables to existing netcdf?

[JohnD]

> Message: 1
> Date: Tue, 29 Oct 2019 07:21:24 -0500 (CDT)
> From: zs1992 <address@hidden>
> To: address@hidden
> Subject: How to append new variables to existing netcdf?
> Message-ID: <address@hidden>
> Content-Type: text/plain; charset=us-ascii
> 
> Hi everyone, I'm using Octave 5.1 and I'd like to do the following: Create a
> netcdf with plenty of variables. If new variables are founded in the future,
> append them to existing netcdf.variables.
> 
> I created a netcdf with ncwriteschema('mynetcdf.nc',Var), where known
> variables are stored in Var.variables. Now I have come across a new
> variable, and I've stored it in a new group NewVar.Variables. I tried to do
> ncwriteschema('mynetcdf.nc',NewVar), but it failed with a message "error,
> netcdf, File exist && NC_noclobber".
> 
> I noticed that there's not other input argument for 'ncwriteschema',
> therefore I can't define nc mode as clobber with this command. So I did the
> following:
> ncid=netcdf_create('mynetcdf','CLOBBER');
> netcdf_reDef(ncid);
> ncwriteschema('mynetcdf',Var);
> This time, another error popped up, saying 'error, netcdf, operation not
> allowed in define mode'.
> 
> Now I'm out of options. Is there any way to append new variables to exising
> netcdf file?
> 
> 

Can you provide a small working example code of what you are doing ?