How do you open .csv files?

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Thomas
Thomas 2014-1-28
编辑： Thomas 2014-1-28
For my dissertation, my data is in a .csv file format, yet I've tried using this code to read in data. I don't understand what is going wrong. Matlab says there is a problem with the usage line, but what? The other I have done is put the name of the file. Could anyone solve my simple problem.
if (nargin ~= 1 ) usage(); end
fd = fopen(fname,'data.csv');
if (fd == -1)
msg = sprintf('File %s not opened\n',fname);
disp(msg);
return;
end

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Thomas
Thomas 2014-1-28
编辑：Thomas 2014-1-28
Just try
fname='data.csv'
fd = fopen(fname);
if (fd == -1)
msg = sprintf('File %s not opened\n',fname);
disp(msg);
return;
end
If such a file (data.csv) does not exist in the directory then you will get the error message as return

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