Girija - do you have four files, one for latitude, longitude, pressure and temperature? Or are all four pieces of information stored within the same file? Do you know how many (say) temperature values there are?
Since the data is in binary, you must know the data type of each element (integer, double, float, etc.) so check out using fopen to open the file, and fread to read the data in.
For example (and this is taken from the link to fread)
% open the file for writing
fid = fopen('temp.dat','wb');
if fid>0
% create a 5x5 matrix
A = magic(5);
% write the matrix data to file
fwrite(fid,A,'double');
% close the file
fclose(fid);
end
% open the file for reading
fid = fopen('temp.dat','rb');
if fid>0
% continue reading until end-of-file is reached
while ~feof(fid)
% read a double
dblVal = fread(fid,1,'double');
% do something with dblVal
if ~isempty(dblVal)
fprintf('dblVal = %f\n',dblVal);
end
end
% close the file
fclose(fid);
end
You can do more than just read in one element at a time (which can be slow) and so can read in multiple elements instead. See the documentation for fread for more details.
In the above code, we write double data to file, and so must read back in the same data type. You will have to do the same for your code given the data type of that data within the binary files.
