How can I import a vector of vectors from txt file into a matrix

Hello,

I have a data.txt file that looks like this, for example:

[1,2,3,[1,2,3,4,5,6,7,8,9,10]]

[1,2,4,[2,3,4,5,6,7,8,9,10,11]]

[1,2,5,[3,4,5,6,7,8,9,10,11,12]]

the length of each line and each inner-vector, the forth element in each line, is always the same.

how can i import that data into a matrix that will contain the forth element as a vector of its own?

i have tried to import the data using 'importdata', which imported it as a (numOfLines*1) cell and using 'cell2mat' but i got that error:

Error using cat

Dimensions of arrays being concatenated are not consistent.

Error in cell2mat (line 83)

m{n} = cat(1,c{:,n});

Answer 1

[KSSV]

fid = fopen('data.txt') ;   % your data file 
S = textscan(fid,'[%f,%f,%f,[%f,%f,%f,%f,%f,%f,%f,%f,%f,%f]]');
fclose(fid) ;
S = cell2mat(S) ;
A = S(:,1:3) ; 
B = S(:,4:end) ;