MATLAB: What is the code to use for format spec in order to get matrix table where each column contain contain 4 data

Question

    if true
Data = fopen('Track.txt', 'r');
formatspec = '';
Matrix = [4,inf];
DataInMatrix = fscanf(Data, formatspec, Matrix);    
end

Answer 1

This works:

fidi = fopen('Track.txt','r');
Data = textscan(fidi, '%s%f', 'Delimiter',':');
DataInMatrix = reshape(Data{2}, 4, []);