MATLAB Answers


How to put a string in a text file to define headers to data?

Asked by Alexandria Will-Cole on 15 Nov 2018
Latest activity Answered by Jeremy Hughes on 15 Nov 2018
Here is my code. I'm trying to make a header for columns of data, but everytime I run only the data remains in the file. Please help! Thanks.
for k=1:3
fprintf(filename1, '# GHz S DB 50');
for j=1:3
M(j,1) = k;
M(j,2) = k;
M(j,3) = k;


Are you sure the headers are printing in the first place? Typically when I print headers for data I end up needing to open the file with fopen before the headers will print for me.
It's not. I am asking how to do so. Thanks!

Sign in to comment.


1 Answer

Answer by Jeremy Hughes on 15 Nov 2018
 Accepted Answer

The issue is here:
fprintf(filename1, '# GHz S DB 50');
fprintf doesn't accept a file name, it need an open, writable file-id
fid = fopen(filename1,'w');
fprintf(fid, '# GHz S DB 50');
Then things should work as you expect


Sign in to comment.