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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Text-processing-2/MATLAB/text-processing-2.m Normal file
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function [val,count] = readdat(configfile)
% READDAT reads readings.txt file
%
% The value of boolean parameters can be tested with
% exist(parameter,'var')
if nargin<1,
filename = 'readings.txt';
end;
fid = fopen(filename);
if fid<0, error('cannot open file %s\n',a); end;
[val,count] = fscanf(fid,'%04d-%02d-%02d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d %f %d \n');
fclose(fid);
count = count/51;
if (count<1) || count~=floor(count),
error('file has incorrect format\n')
end;
val = reshape(val,51,count)'; % make matrix with 51 rows and count columns, then transpose it.
d = datenum(val(:,1:3)); % compute timestamps
printf('The following records are followed by a duplicate:');
dix = find(diff(d)==0) % check for to consequtive timestamps with zero difference
printf('number of valid records: %i\n ', sum( all( val(:,5:2:end) >= 1, 2) ) );