how to read data from file into a char array?

13 views (last 30 days)
Hi,
I have a file from which I want to read certain numeric data. I know the string before the data starts (say "start_string", and after it ends (say "end_string").
I have a code that kind of works, but it thorws an exception (Subscripted assignment dimension mismatch) and it looks bad.. I dont like the ~feof usage twice.
Looking for inputs on making this code better, cleaner and simpler.
Thanks!
This is my code:
i=0; % line index
fid=fopen('file_name')
while ~feof(fid)
line_tmp=fgetl(fid) % read line
if (~isempty(strfind(line_tmp,'start_string')))
while ~feof(fid)
line_copy=fgetl(fid)
if (isempty(strfind(line_tmp,'end_string')))
i=i+1;
data(i,:)=str2num(line_copy);
end
end
end
end

Answers (1)

Star Strider
Star Strider on 4 Oct 2020
If you want to read the file as text, use the fileread function.
You can then do what you want with it.

Products


Release

R2012a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!