Why do I get this error?
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This is my function:
function download(d)
[date_string] = datestr(d, 'yyyy-mm-dd')
yyyy = date_string(1:4);
mm = date_string(6:7);
dd = date_string(9:10);
download_string = ['password and username and the link' yyyy mm dd '.nc4'];
disp('Executing this string: ');
disp(download_string);
ncdisp(['MERRA2_400.inst6_3d_ana_Np.' yyyy mm dd '.nc4 '])
system(download_string);
I get this error, why??
Error using internal.matlab.imagesci.nc/openToRead (line 1259)
Could not open MERRA2_400.inst6_3d_ana_Np.20161001.nc4 for reading.
Error in internal.matlab.imagesci.nc (line 121)
this.openToRead();
Error in ncdisp (line 50)
ncObj = internal.matlab.imagesci.nc(ncFile);
Someone know what to do?
采纳的回答
Jan
2017-5-22
The error message seems to be clear:
Could not open MERRA2_400.inst6_3d_ana_Np.20161001.nc4 for reading.
There is an empty space at the end of the name, perhaps this matters. Unfortunately this space seems to be inserted exactly in this line, which has an inproper syntax:
ncdisp('MERRA2_400.inst6_3d_ana_Np.' yyyy mm dd '.nc4 '])
Therefore I cannot guess, if the original code contains the same problem.
We cannot know, if this object is existing, but you can and should check this. Please provide the detail, if this file is missing (if it is a file at all, I do not know the command ncdisp.
3 个评论
kk1991
2017-5-22
Jan
2017-5-22
Perhaps the file is not in the current folder?
file = fullfile(cd, ['MERRA2_400.inst6_3d_ana_Np.' yyyy mm dd '.nc4']);
if ~exist(file, 'file')
error('File not found: %s', file);
end
ncdisp(file);
Is the file really existing? It will be much better not to use cd, but the real folder name.
kk1991
2017-5-24
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