How to apply fprinf for matrix
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Ali
el 27 de Mayo de 2016
Comentada: Ali
el 27 de Mayo de 2016
I would like to use fprintf for Writing data to a text file. I want to apply fprintf on the following matrix. I have a matrix with n rows and 3 columns. please help with this issue. thanks a lot. for instance.
0.0000 0.0000 0.0000
0.0000 0.1000 0.0000
0.0643 0.0675 0.0000
0.1000 0.0000 0.0000
0.0000 0.2000 0.0000
0.2000 0.0000 0.0000
0.0725 0.1500 0.0000
0.1488 0.0873 0.0000
0.0726 0.2501 0.0000
0.0000 0.3000 0.0000
0.0000 0.4000 0.0000
0.3000 0.0000 0.0000
0.4000 0.0000 0.0000
1 comentario
Respuesta aceptada
Stephen23
el 27 de Mayo de 2016
Editada: Stephen23
el 27 de Mayo de 2016
This is MATLAB, so there really is no point in using an ugly loop when you can do it much faster and simpler with just one csvwrite call:
csvwrite('test.csv',M)
M = [...
0.0000,0.0000,0.0000;...
0.0000,0.1000,0.0000;...
0.0643,0.0675,0.0000;...
0.1000,0.0000,0.0000;...
0.0000,0.2000,0.0000;...
0.2000,0.0000,0.0000;...
0.0725,0.1500,0.0000;...
0.1488,0.0873,0.0000;...
0.0726,0.2501,0.0000;...
0.0000,0.3000,0.0000;...
0.0000,0.4000,0.0000;...
0.3000,0.0000,0.0000;...
0.4000,0.0000,0.0000];
%
fid = fopen('test.csv','wt');
fprintf(fid,'%f,%f,%f\n',M.')
fclose(fid);
Más respuestas (3)
Stalin Samuel
el 27 de Mayo de 2016
%example code
s = rand(10,3);
fileID = fopen('a.txt','w');
for i=1:length(s)
fprintf(fileID,'%g\t%g\t%g \r\n',s(i,:));
end
fclose(fileID);
TastyPastry
el 27 de Mayo de 2016
fh = fopen('newFile.txt','w');
for i=1:size(myData,1)
fprintf(fh,'%d %d %d\n',a(i,1),a(i,2),a(i,3))
end
Guillaume
el 27 de Mayo de 2016
dlmwrite('test.csv', M, 'delimiter', ' ');
or if you want to specify the precision
dlmwrite('test.csv', M, 'delimiter', ' ', 'precision', '%6.4f');
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