Determining fscanf formatspec.

Hi, i'm trying to make [n , 4] table with the a.txt

I need only need numeric datas but i have no idea which formatSpec i need to use.

I have no idea how to deal with the space blanks between numbers i need.

a = fopen('a.txt' ,'r')
data = fscanf(a , FromatSpec , [4 inf])

Please let me which Formatspec could make them to the matrix i need.

I want to use fscanf.

[Ameer Hamza]

What about the answer here: https://www.mathworks.com/matlabcentral/answers/636225-unable-to-determine-formatspec-while-reading-txt-file-by-fscanf

[aero123]

Thank you for your last answer. But i want to figure out how to make it with fscanf :(

Thank you by the way.

Answer 1

[Ameer Hamza]

Try this code using fscanf()

lines = strsplit(fileread('a.txt'), '\n', 'CollapseDelimiters', false);
idx = find(contains(lines, 'Global Statistics'));
idx = [9 idx+10];

data = cell(1, numel(idx));
fid = fopen('a.txt' ,'r');
line_read = 0;
for i = 1:numel(idx)
    nls = idx(i)-line_read;
    arrayfun(@(x) {fgetl(fid)}, 1:nls);
    data{i} = fscanf(fid , '%f %f %f %f', [4, inf]).';
    line_read = idx(i) + size(data{i},1)+1;
end
fclose(fid);
idx = cellfun(@isempty, data);
data(idx) = [];

[aero123]

There are some spaces between datas as you can see below

With your code, only first data set been transformed to the matrix.

How should I correct code to make all data be transformed to the matrix?

[Ameer Hamza]

What is the output when you run the code? It returns three matrices for three portions of your data

>> data
data =
  1×3 cell array
    {117×4 double}    {326×4 double}    {153×4 double}

If you want just a single matrix then add the following line

data = vertcat(data{:})