how to export numerical part without decimal and digit with fractional part in the same array

Question

Poulomi Ganguli 2017-12-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/372250-how-to-export-numerical-part-without-decimal-and-digit-with-fractional-part-in-the-same-array

评论： Jan 2017-12-11

Hello, I have a foll. array, which I want to export in a text document:

000  1.000 6338110.000  0.198  0.064  1.701  1.505  0.035    0.043    0.160
000  1.000 6338130.000  0.211  0.048  1.885  1.769  0.026    0.041    0.506
000  1.000 6340210.000  0.309  0.004  3.054  4.318  0.028    0.045    0.420
000  1.000 6340216.000  0.289  0.007  2.876  3.997  0.018    0.046    0.912

B =

1 6338110  0.198  0.064  1.701  1.505  0.035    0.043    0.160
1 6338130  0.211  0.048  1.885  1.769  0.026    0.041    0.506
1 6340210  0.309  0.004  3.054  4.318  0.028    0.045    0.420
1 6340216  0.289  0.007  2.876  3.997  0.018    0.046    0.912

If I use dlmwrite with precision, it always shows all 3 digits together, & if In use dlmwrite without precision all station IDs in column 3 is rounded to a scientific digit (e.g., 6.33e+4) form. Can anybody help me how to export it as in Matrix B format? Thanks,

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Jan 2017-12-11

"dlmwrite with precision" does not reveal the detail, what you used to specify the precision. What about '%16g'?

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

KL 2017-12-11

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/372250-how-to-export-numerical-part-without-decimal-and-digit-with-fractional-part-in-the-same-array#answer_295649

在 MATLAB Online 中打开

One approach is to use fprintf and then specify the output format,

 A = [1.000  1.000 6338110.000  0.198  0.064  1.701  1.505  0.035    0.043    0.160
    1.000  1.000 6338130.000  0.211  0.048  1.885  1.769  0.026    0.041    0.506
    1.000  1.000 6340210.000  0.309  0.004  3.054  4.318  0.028    0.045    0.420
    1.000  1.000 6340216.000  0.289  0.007  2.876  3.997  0.018    0.046    0.912];
fid = fopen('hithere.txt','w');
fspec = '%d,%d,%d,%.3f,%.3f,%.3f,%.3f,%.3f,%.3f,%.3f\n'; %here you mention the format you want
fprintf(fid,fspec,A.');
fclose(fid);