Help writing a script for netcdf files

I'm trying use the David's script for create netcdf archive, but I not know as declare the variable tmp...

Anyone could help me, please!? ************************************** ** David's scripts below *******

Hello;

Here an example.

I hope this is of some help.

Regards

Dave Correa

http://fismatlab.blogspot.com/

close all, clear all, clc

yearini=1960;

yearfin=1970;

%% --------------------

nt=144;

nx=1440;

ny=720;

lon=linspace(-180,180,nx);

lat=linspace(90,-90,ny);

time=1:nt;

[mlat,mlon]=meshgrid(lat,lon);

disp('Creando file Netcdf...')

filenc=['Data.nc'];

ncid = netcdf.create(filenc,'NC_WRITE');

% Crear dimensiones

dimid_lon = netcdf.defDim(ncid,'longitude',nx);

dimid_lat = netcdf.defDim(ncid,'latitude',ny);

dimid_time = netcdf.defDim(ncid,'time',nt);

% Crear variables y atributos

varid_lon = netcdf.defVar(ncid,'longitude','double',dimid_lon);

netcdf.putAtt(ncid,varid_lon,'long_name','Longitude')

netcdf.putAtt(ncid,varid_lon,'units','degrees_east')

%

varid_lat = netcdf.defVar(ncid,'latitude','double',dimid_lat);

netcdf.putAtt(ncid,varid_lat,'long_name','Latitude')

netcdf.putAtt(ncid,varid_lat,'units','degrees_north')

varid_time = netcdf.defVar(ncid,'time','double',dimid_time);

netcdf.putAtt(ncid,varid_time,'long_name','Time')

netcdf.putAtt(ncid,varid_time,'units','Months since 1960-01-01 00:00:00')

%

varid_prec = netcdf.defVar(ncid,'prec','double',[dimid_lon,dimid_lat,dimid_time]);

netcdf.putAtt(ncid,varid_prec,'long_name','Variable')

netcdf.putAtt(ncid,varid_prec,'units','mm')

netcdf.putAtt(ncid,varid_prec,'missing_value',-9999)

netcdf.endDef(ncid)

% % % Agregar datos de coordenadas

netcdf.putVar(ncid,varid_lon,lon);

netcdf.putVar(ncid,varid_lat,lat);

netcdf.putVar(ncid,varid_time,time);

m=1;

for year=yearini:yearfin

for mes=1:12

netcdf.putVar(ncid,varid_prec,[0 0 m-1],[nx ny 1],tmp);

m=m+1;

end

end

netcdf.close(ncid)

******************************************************

Thanks, Carlos