tab delimited .txt file
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In order to write a matrix as a tab delimited .txt file I can use the following command:
dlmwrite(Filename, Data, 'delimiter', '\t');
Say that the dimensions of 'Data' is [m n], how is it possible to include a non numeric vector (i.e. vector containing words) as m(1) in order to state what each colummn refers to in the .txt file?
thanks
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Grzegorz Knor
2011-11-18
Suppose that your Data is:
Data = [1 2 3;4 5 6; 7 8 9];
Would you like to create such a file?
line1 1 2 3
line2 4 5 6
line3 7 8 9
If so, this is my suggestion:
Data = [1 2 3;4 5 6; 7 8 9];
names = {'line1','line2','line3'};
fid = fopen('test_file','w');
for k=1:3
fprintf(fid,'%s\t%.2f\t%.2f\t%.2f\n',names{k},Data(k,:));
end
fclose(fid);
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Paul Safier
2019-3-27
What if the data matrix had more than a few columns, say thousands? Would you have to type a format (e.g. .2f\t%) for each column?
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Walter Roberson
2011-11-18
dlmwrite() can only be used for numeric data or for pure character data (an ugly hack with little purpose). dlmwrite() cannot be used for mixing character data and numeric data.
Grzegorz's proposed code looks fine.
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Adam Danz
2020-6-17
For more recent releases of Matlab (r2013b or later), use writetable() with the delimiter set to \t.
writetable(T,'tabledata2.txt','Delimiter','\t')
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