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textscan - line by line multiple outputs

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Jay
Jay 2014-3-11
编辑： per isakson 2014-3-11
I have a text file of the format:
TITLE = "M:/Data2/CTData/fcg1e09/Warwick/Granular/collapse/DVC_Vec_48x48x48_50%ov/ExportDat/D1.dat"
VARIABLES = "x [mm]" "y [mm]" "z [mm]" "u [m/s]" "v [m/s]" "w [m/s]"
ZONE I=83 J=83 K=45
0.891600 147.559402 0.891600 0.000000 0.000000 0.000000
2.674800 147.559402 0.891600 0.000000 0.000000 0.000000
4.458000 147.559402 0.891600 0.000000 0.000000 0.000000 ...
I want to ignore the first 3 lines. I am interested in blocks of 6889 lines where each set of 83 lines needs to write to a row of a matrix (83x83) - a different matrix for each column. I may want to look at a different set of 6889 lines within the text file.
I can't get textscan to work - I assume because it is not designed for multiple outputs. And textread doesn't have fid options and now archaic. So far I have...
%skip 3+6889x lines
for i=1:(3+6889*slice_no),
fgetl(fid);
end
for j=1:83,
for k=1:83;
[X(j,k), Y(j,k), Z(j,k), U(j,k), V(j,k), W(j,k)] = textscan(fid, '%f %f %f %f %f %f');
end
end
But textscan is failing due to the multiple outputs. Any ideas anyone?

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回答（1 个）

per isakson
per isakson 2014-3-11
编辑：per isakson 2014-3-11
See documentation textscan, Read formatted data from text file or string.
Textscan has one output argument, which capture all output data. Try something like
C = textscan( fid, '%f%f%f%f%f%f', 83 );
in place of the inner loop

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