function [listVec, len, width] = read_motion_dat(fname)
fid = fopen(fname, 'r');
[len, count] = fscanf(fid,'%d',1);
[width, count] = fscanf(fid,'%d',1);
listVec = fscanf(fid,'%f', [width, len]);
listVec = listVec';
fclose(fid);
return;
