Overwriting specific line in a text file and data export
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Hello,
I'm having trouble trying to export the data from my code into the following format, 'FLUX FACTORS.txt.' Its easy enough to just export the data as a text file, but the problem is is that the program I plan to use this file as an input for requires that I keep the same formatting as 'FLUX FACTORS.txt' (it was based on punch cards).
How do I export the data in my code variable FLUX and have it follow the same configuration as 'FLUX FACTORS.txt.'
Secondly, how can I overwrite a single line from 'HISTORY.txt' (specifically line 3) and overwrite it with my data from 'FLUX FACTORS.txt.' e.g. for one run, I'd like to replace line 3 in 'History.txt' with line 5 from 'FLUX FACTORS.txt.'
I have attached my code and the input files below.
Thanks in advance,
Quang
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Accepted Answer
KSSV
on 4 Feb 2019
file1 = 'FLUX FACTORS.txt' ;
file2 = 'HISTORY.txt' ;
% REad file1
fid = fopen(file1,'r') ;
S1 = textscan(fid,'%s','delimiter','\n') ;
S1 = S1{1} ;
fclose(fid) ;
% REad file2
fid = fopen(file2,'r') ;
S2 = textscan(fid,'%s','delimiter','\n') ;
S2 = S2{1} ;
fclose(fid) ;
% Replace 3rd line of file2 with 5th lines of file1
S2{3} = S1{5} ;
% Write the edited to file
fid = fopen('data.txt','wt') ;
fprintf(fid,'%s\n',S2{:});
fclose(fid);
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