Issue with fscanf not reading more than 1 row

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D 2011-10-22

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https://ww2.mathworks.cn/matlabcentral/answers/19063-issue-with-fscanf-not-reading-more-than-1-row

I'm trying to pull data from a file using fscanf. The data file is formatted as you see in the fscanf below, and has 20 rows. I'm only getting 1 row's worth of data stored into A. I thought fscanf was supposed to read till the end of the file but it seems to only be reading the one line. Is there a way to correct it so it stores the data from all 20 rows?

fid = fopen('myfile.dat');
fgetl(fid); fgetl(fid);
A = fscanf(fid,'%f %f %f %f %*s %*s');
B = reshape(A,4,20)'

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Answer 1

Fangjun Jiang 2011-10-22

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Check whether you have any special characters at the end of each line. I have similar program. It didn't have problem. Add fclose(fid) at the end just in case.

myfile.data contains the following

2 3 4 a b
2 3 4 a b
2 3 4 a b
2 3 4 a b
2 3 4 a b
2 3 4 a b
2 3 4 a b
2 3 4 a b
2 3 4 a b
2 3 4 a b
2 3 4 a b
2 3 4 a b

Run your code, it has

B =
   2     3     4
   2     3     4
   2     3     4
   2     3     4
   2     3     4
   2     3     4
   2     3     4
   2     3     4
   2     3     4
   2     3     4

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D 2011-10-22

Thanks, I actually found the problem after you said it worked. I added another %*s at the end of the formatting. I put one for the column of names, neglecting to consider first and last names, so it needed an extra to complete the line.

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