How can you rearrenge a large datafile to....

Hi guys

I have a large .txt file witch I load in matlab (x,y,z coordinates for a ship), but the point is I will use matlab to generete the point so it is an input into another software. The other sofware can't handle all the points in the .txt file, so I need to have a code who can rearrenge the .txt file into a smaller one. Otherwise it is very time consuming doing manually. I'm thinking something like take the every 50. set of x,y,z and make a new matrix.

Hope you understand my issue...

Answer 1

[Ingrid]

instead of using load, you could use textscan to read in the txt file

endNotReached = true;
counter = 1;

fid = fopen(stringTextLocation);
while endNotReached
   rawData = textscan(fid,'%f%f%f', 50);
   if size(rawData,1) < 50
      endNotReached = false;
   end

   fidWrite = fopen(['data' num2str(counter) '.txt'],'w');
   fprintf(fidWrite,'%f%f%f\n',rawData);
   fclose(fidWrite)

   counter = counter + 1;

end
fclose(fid)

[Isa Ilkan Duran]

Excellent !!!

[Ingrid]

by the way, whe are not all guys here ;-)