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How can open and read .dat file?

조회 수: 1,274(최근 30일)
SM
SM 2020년 9월 8일
댓글: Walter Roberson 2020년 11월 4일
A=[3 4 4 NaN NaN NaN NaN NaN;
36 46 4 4 1 3 NaN NaN;
24 32 3 3 1 3 2 3;
25 32 3 3 1 3 2 NaN];
I have stored this matrix as a .dat file using following code:
filename = sprintf('output.dat');
dlmwrite(filename, A, ' ' );
Now I want to open (fopen) this "output.dat" file in read mode and want to read data from this open file using fscanf. How can I do that?
any help would be greatly appreciated.
Thank you!
  댓글 수: 2
SM
SM 2020년 9월 8일
The matrix A has been stored in output.dat file in my computer. Now I want to read data from the output.dat file using fopen and fscanf. I have used the following code:
fileID = fopen('output.dat','r');
result = fscanf(fileID,'%f')
It results single column array but I need the output in the following format:
result=[3 4 4 NaN NaN NaN NaN NaN;
36 46 4 4 1 3 NaN NaN;
24 32 3 3 1 3 2 3;
25 32 3 3 1 3 2 NaN];
or,
result=result={[3 4 4]; [36 46 4 4 1 3]; [24 32 3 3 1 3 2 3]; [25 32 3 3 1 3 2]};

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답변(1개)

Walter Roberson
Walter Roberson 2020년 9월 8일
result = load('output.dat');
  댓글 수: 4
Walter Roberson
Walter Roberson 2020년 11월 4일
dat is not a fixed file format. It is used by many different programs for whatever data they have handy. You would need to know which program created the file to try to figure out what the file format is.

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