appending a file
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i have a file called hello.txt using wordpad which contains the matrix
2 7 3
2 6 9
now i have a vector v = [1 2 3] and i want to add this vector to the hello.txt file so when i open the hello.txt file i should have
2 7 3
2 6 9
1 2 3
how can i do this
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Walter Roberson
le 15 Mar 2012
fid = fopen('hello.txt', 'a+');
fprintf(fid, '%d %d %d\n', v);
fclose(fid);
4 commentaires
Walter Roberson
le 15 Mar 2012
See, Jan, people do still use WordPad and still need the 't' permissions ;-)
Walter Roberson
le 15 Mar 2012
>> !cat hello.txt
2 7 3
2 6 9
>> fid = fopen('hello.txt','at')
fid =
3
>> v = [1 2 3]
v =
1 2 3
>> fprintf(fid, '%d %d %d\n', v);
fclose(fid);
>> !cat hello.txt
2 7 3
2 6 9
1 2 3
Plus de réponses (1)
Walter Roberson
le 15 Mar 2012
Your existing question is still here and still active. Please do not open duplicate questions: it just leads to frustration and confusion.
If you require answers within 10 minutes (as implied by the time between your reply here and the time you opened the duplicate question), then you should be hiring a consultant.
1 commentaire
Wayne King
le 15 Mar 2012
I second Walter's sentiment. People are volunteering their time to help you.
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