0 个投票

Hello, I have an issue in my code to read .netcdf files I try to read it with
temp=ncread('/home/yves/Documents/pre/argo09_14/aoml/1901006/1901006_prof.nc','TEMP');
It works But when I try to create the file first to make it easier to change the file, it doesn't work
rootdir='/home/yves/Documents/pre/argo09_14/aoml/1901006/'
list=dir(rootdir)
a=char(list.name);
filename=(a(5,:))
file = [rootdir, num2str(filename)];
The file created is
/home/yves/Documents/pre/argo09_14/aoml/1901006/1901006_prof.nc
but
temp=ncread(file,'TEMP');
Gets me an error message:
Error using internal.matlab.imagesci.nc/openToRead (line 1252)
Could not open /home/yves/Documents/pre/argo09_14/aoml/1901006/1901006_prof.nc for
reading.
Error in internal.matlab.imagesci.nc (line 122)
this.openToRead();
Error in ncread (line 54)
ncObj = internal.matlab.imagesci.nc(ncFile);
Does anybody know what is wrong with the code? Thank's a lot for the help! Yves

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Steven Lord
Steven Lord 2016-6-17

0 个投票

The error message you quoted is:
"Could not open /home/yves/Documents/pre/argo09_14/aoml/1901006/1901006_prof.nc for reading."
Note that there are TWO spaces between the end of the filename and the word "for". When you used "a=char(list.name);" if any of the names of other files in the directory are one character longer than the fifth file's name, that will pad the short name with a space in order to make all the names the same length (so they can fit in a char matrix.) Instead of doing this, go directly to:
filename = list(5).name;
No char matrix creation, no padding, no extra space. [I'd also eliminate the num2str call -- your file name in the struct better be a char vector, or dir has done something wrong.]

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