Removing automatic variable names in array2table or writetable and adding some text to the header of output file

2021 10 17
1 个回答
更新时间：2021 10 17
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0 个投票

Hi, I am trying to get a text output file using the following code:
Output=[DD,D];
T=array2table(Output);
writetable(T,'m.txt','Delimiter',' ')
I get the variable names Output1 and Output2 as headers in the output text file. I would like to remove both names and instead have a text like DR as the heading.

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Ive J
Ive J 2021-10-17
Try this
T=array2table(Output, 'VariableNames', {'DR1', 'DR2'}); % or whatever variable names you like to set
Thanks for your comment. Is there any way to remove the variable names first? Then there would be some way to add a single header to the text file possibly altering the writetable.
What I get in the text file is:
DR1 DR2
169 30
178 26
234 26
What I need is:
DR
169 30
178 26
234 26
dpb
dpb 2021-10-17
Then don't use a table with two variables but an array instead.
T=table([DD,D],'VariableNames',{'DR'});
Again the solution gives:
DR_1 DR_2
169 30
178 26
234 26
I found a way to remove the variable names: 'WriteVariableNames',false in writetable handles.
What I need now is to add a DR to start of the text file.
Finally I found that fprintf is a better fuction for my purpose:
fid=fopen('m1.txt', 'w'); % open a file for writing
fprintf(fid,'DR\n'); % print a title
fprintf(fid,'%d %d\n',Output); % print values in column order % two values appear on each row of the file
fclose(fid);
Thanks all.

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回答（1 个）

dpb
dpb 2021-10-17

0 个投票

As @Ive J points out, define variable names as desired. NB there's no need for intermediate variables here, either--if you already have the variables, then just use them directly:
T=table(DD,D,'VariableNames',{'DR1','DR2'});

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