Maybe something like ?
fid = fopen('yourfile.txt','r');
%skip first 3 lines
for i=1:3
line = fscanf(fid,'%s\n');
end
n = number of data per set;
p = number of set;
for j=1:p
for i=1:n
line = fscanf(fid,'%s\n');
my_data(i,j)=str2num(line);
end
line = fscanf(fid,'%s\n');
legend{j} =...
