MATLAB Answers

empty array size is stuck on 1x3

3 views (last 30 days)
Patrick Connolly
Patrick Connolly on 26 Oct 2021
Edited: per isakson on 26 Oct 2021
%Start with an empty matrix
data=[];%Handle to open file
fileID=fopen('Track-16.gpx','r');
%Skip the first 14 lines
fscanf(fileID,'\n\n\n\n\n\n\n\n\n\n\n\n\n\n');
%Scan through until the end of file(feof). Specification low level IO.
%Result transposed and formatted into single matrix
while ~feof(fileID)
nextrow=fscanf(fileID, '%*s lat="%f" lon="%f">\n <ele>%f</ele>\n <time>2013-01-19T%f:%f:%f</time>\n');
nextrow=nextrow';
data=[data;nextrow];
end
fclose(fileID)
%Separating data file into separate vectors.
latitude=[data(1:end,1)];
longitude=[data(1:end,2)];
elevation=[data(1:end,3)];
hours=[data(1:end,4)];
minutes=[data(1:end,5)];
seconds=[data(1:end,6)];
THis is my error
Index in position 2 exceeds array bounds. Index must not exceed 3.
Error in test6 (line 19)
hours=[data(1:end,4)];

Answers (2)

per isakson
per isakson on 26 Oct 2021
Edited: per isakson on 26 Oct 2021
Try replace
fscanf(fileID,'\n\n\n\n\n\n\n\n\n\n\n\n\n\n');
by
for jj = 1 : 14
fgetl( fileID );
end
fscanf(fileID,'\n\n\n\n\n\n\n\n\n\n\n\n\n\n'); affects the current location of the position pointer in the specified file for blank lines only. (Test with ftell() .) Does the file starts with fourteen blank lines?

Community Treasure Hunt

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

Start Hunting!