Reading text file, matlab

Question

I am reading a text file \'mytext.text\' in matlab. Data file looks like:

1   -4436.6910  415.1843    -3019.7497  1,3,4,5,21,23

2   -4366.4541  1353.9975   -308         


        

Answer 1

To read a single line do

% Read at most 4 elements
data1234 = fscanf (fid, '%d %f %f %f', 4);
% Read as many elements as possible, stop when no ',' is found
data5 = fscanf (fid, '%d,');

Continue reading lines until you reached the end of the file (save the data from each line before doing that). So you need some loop that continues doing this untill the file ends.

Answer 2

One possibility is to read the last column as string, then convert it to numbers afterward.

fid = fopen('file.dat','r');
C = textscan(fid, '%f %f %f %f %s', ...
    'Delimiter',' ', 'MultipleDelimsAsOne',true, 'CollectOutput',true);
fclose(fid);

C = [num2cell(C{1}) cellfun(@str2num, C{2}, 'UniformOutput',false)]

The resulting cell-array:

C = 
    [1]    [-4436.7]    [415.18]    [-3019.7]    [1x6 double]
    [2]    [-4366.5]    [  1354]    [-3085.1]    [1x4 double]

with:

>> C{1,end}
ans =
     1     3     4     5    21    23
>> C{2,end}
ans =
     1     3     4    23