Generic code for Reading from Files:

The generic code to complete this is as shown below:

fid = fopen('filename');

if fid == -1

   disp('File open not successful')

else

   while feof(fid) == 0

     % Read one line into a string variable

     aline = fgetl(fid);

     % Use string functions to extract numbers, strings,

     % etc. from the line

     % Do something with the data!

   end

   closeresult = fclose(fid);

   if closeresult == 0

     disp('File close successful')

   else

     disp('File close not successful')

   end

end

The permission string can be involved in the call to the fopen function, for illustration,

fid = fopen('filename', 'r');

but is not essential as reading is the default. The condition on the while loop can be interpreted by saying "while the file end-of-file is false." The other way to write this is

while  feof(fid)

that is interpreted as "while we're not at the end of the file."