how to store the matrix into dat file.

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song
song on 5 Aug 2016
Commented: Aiswarya Babu on 11 Jun 2021
Hi,
I have one question about saving the matrix into .dat file. I donot know how to implement it. I will describe the question.
1. I have one matrix c
2. I want to save c into one .dat file in this format:
1 qid:1 1:0.4709 2:0.1948 3:0.2277 4:0.9254
2 qid:1 1:0.2305 2:0.2259 3:0.4357 4:0.4302
3 qid:1 1:0.8443 2:0.1707 3:0.3111 4:0.1848
The elements are separated by a space character Does anybody can help me solve this problem? Thanks so much.

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Accepted Answer

Walter Roberson
Walter Roberson on 5 Aug 2016
fid = fopen('YourFile.dat', 'w');
fprintf(fid, '%d qid:1 1:%6.4f 2:%6.4f 3:%6.4f 4:%6.4f\n', C.');
fclose(fid)
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Walter Roberson
Walter Roberson on 5 Aug 2016
The data is not stored in one row: you are using an obsolete editor to look at the file. Microsoft started replacing NotePad by 1997.
If you need to keep using 20 year old software, then replace the 'w' with 'wt'
Aiswarya Babu
Aiswarya Babu on 11 Jun 2021
help me to store data as a text file.
These are the values i need to store as a text file .
29 C3 50 5F 57 14 20 F6 40 22 99 B3 1A 02 D7 3A
Kindly help me.

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More Answers (1)

Azzi Abdelmalek
Azzi Abdelmalek on 5 Aug 2016
A=rand(3,5)
fid=fopen('file.dat','w')
fprintf(fid,[repmat('%f ',1,4) '\r\n'],A)
fclose(fid)

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