How can I write a matrix into a tab delimited .dat file with header?

Question

Iro 2013-5-2

0
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https://ww2.mathworks.cn/matlabcentral/answers/74376-how-can-i-write-a-matrix-into-a-tab-delimited-dat-file-with-header

Hi,

I would like to ask you the following: I have a matrix (lets call it Output[]) with numbers (integ, decimal and bool) and I want to transform it into a tab delimited .dat file in a format that includes a *header *in the first line and also curly brackets in every row like the following:

Number of Output rows: 240 %this number will be actually assigned by the size of the matrix

{ 102 103 3.5 2.7 1 2.3 } %the spaces are actually tabs

{ 1223 305 8 9 3 0.5 }

{ 507 109 6.5 8.7 2 7.3 }

...and so on

Can somebody help me to do it with fprintf?

Thanks, Iro

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Answer 1

Walter Roberson 2013-5-2

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https://ww2.mathworks.cn/matlabcentral/answers/74376-how-can-i-write-a-matrix-into-a-tab-delimited-dat-file-with-header#answer_84215

在 MATLAB Online 中打开

fid = fopen('YourFile.dat', 'wt');
fprintf(fid, 'Number of Output rows: %d\n', size(Output,1));
fprintf(fid, '{\t%g\t%g\t%g\t%g\t%g\t%g\t}\n', Output.' );
fclose(fid);