error using textscan with csv files

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C.G.
C.G. 2022-2-16
回答： Walter Roberson 2022-2-16
I have been given a code to process some data in a csv file. When I run this I get the error below. Can anybody help?
fid = fopen('time.csv');
out = textscan(fid,'%s %f %f %s','delimiter',',','headerlines',1);
fclose(fid);
Error using textscan
Invalid file identifier. Use fopen to generate a valid file identifier.

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回答（1 个）

Walter Roberson
Walter Roberson 2022-2-16
The fopen failed. The file does not exist in the matlab path, or you do not have permission. if you used the two-output form of fopen you would get a message about why it failed.

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