fide = fopen('data.13o')head_lines = 0while 1 head_lines = head_lines+1 line = fgetl(fide) answer = findstr(line,'END OF HEADER') if ~isempty(answer), break; endend
% the header of the data.13o file is;
OBSERVATION DATA M RINEX VERSION / TYPE LEICA GEO OFFICE 5.0 10-5-13 10:45 PGM / RUN BY / DATE OBSERVER / AGENCY O2930689 MARKER NAME O2930689 MARKER NUMBER P8UO0W21QTC -Unknown- -Unknown- REC # / TYPE / VERS -Unknown- TPSGR3 NONE ANT # / TYPE 4303634.7047 2746069.9471 3812585.4149 APPROX POSITION XYZ 1.3289 0.0000 0.0000 ANTENNA: DELTA H/E/N L1PhaOff: 0.2338 L2PhaOff: 0.2252 COMMENT 1 1 WAVELENGTH FACT L1/2 7 C1 P1 L1 D1 P2 L2 D2 # / TYPES OF OBSERV 2013 4 13 4 56 30.000000 TIME OF FIRST OBS 2013 4 13 7 59 0.000000 TIME OF LAST OBS 16 LEAP SECONDS 27 # OF SATELLITES END OF HEADER
%this loop works what it supposed to be but I couldn't understand how "while 1" works for this loop and what's the difference between "while 1" and while for the loop.
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