call recursive fun. erase txtfile

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huda nawaf
huda nawaf 2012-9-7
hi, I i have recursive function , each time call this function return different array.
I want to print these arrays into txt file, it is important to me store all arrays. But the problem each time is called function will erase the txtfile.
What I have to do to save all arrays?
THANKS IN ADVANCCE

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采纳的回答

Jan
Jan 2012-9-7
编辑：Jan 2012-9-7
Main function, which opens and closes the file:
fid = fopen(FileName, 'w');
if fid == -1, error('Cannot open file'); end
Recursive(fid, 17);
fclose(fid);
And the recursice function:
function Recursive(fid, Num)
Num = Num - 1;
if Num == 0
return;
end
fprintf(fid, '%d\n', Num);
Recursive(Num);
end
Or you open the file in the recursive function for appending:
function Recursive(Num)
fid = fopen(FileName, 'a');
if fid == -1, error('Cannot open file'); end
fprintf(fid, '%d\n', Num);
fclose(fid);
Num = Num - 1;
if Num > 0
Recursive(Num);
end
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huda nawaf
huda nawaf 2012-9-14
thanks jan, it is working now

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Azzi Abdelmalek
Azzi Abdelmalek 2012-9-9
maby your fclose(fid) is in the loop
fid = fopen('filename.txt', 'w');
for k=1:10
v=(1:k), %example
fprintf(fid, '%f\t',v);
fprintf(fid, '\n',[]);
end
fclose(fid);
  5 个评论
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Azzi Abdelmalek
Azzi Abdelmalek 2012-9-9
编辑：Azzi Abdelmalek 2012-9-9
I think you can add this code inside your function just after cluster1
fprintf(fid, '%f\t',cluster1);
fprintf(fid, '\n',[]);
and call your function
fid = fopen('filename.txt', 'w');
F=devide();
fclose(fid);
huda nawaf
huda nawaf 2012-9-11
thanks, do u mean open file in main program?
I will try do that. if I failed , I will send my code.
thanks again

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