Combination of 4 Element
2 views (last 30 days)
Show older comments
Machmud Roby Alhamidi
on 21 Oct 2019
Edited: Andrei Bobrov
on 22 Oct 2019
How do i put this to the simple way?
bl is a cell contained one or two elements
a1 = cell2mat(bl(1));
a2 = cell2mat(bl(2));
a3 = cell2mat([bl(1) bl(2)]);
a4 = cell2mat(bl(3));
a5 = cell2mat([bl(1) bl(3)]);
a6 = cell2mat([bl(2) bl(3)]);
a7 = cell2mat([bl(1) bl(2) bl(3)]);
a8 = cell2mat(bl(4));
a9 = cell2mat([bl(1) bl(4)]);
a10 = cell2mat([bl(2) bl(4)]);
a11 = cell2mat([bl(1) bl(2) bl(4)]);
a12 = cell2mat([bl(3) bl(4)]);
a13 = cell2mat([bl(1) bl(3) bl(4)]);
a14 = cell2mat([bl(2) bl(3) bl(4)]);
a15 = cell2mat([bl(1) bl(2) bl(3) bl(4)]);
i tried using
for i=1:4
a{i}=combnk(bl,i);
end
but end up with cell in cell element, and it is hard to access.
thank you.
0 Comments
Accepted Answer
Jos (10584)
on 21 Oct 2019
I make use of my function NCHOOSE, available here:
% bl is a cell array with four elements, each cell has 1 or 2 elements.
bl = {1 , [2 3], 4, [5 6]}
bi = nchoose(1:numel(bl))
a = cellfun(@(k) [bl{k}], bi, 'un', 0 )
More Answers (1)
Andrei Bobrov
on 21 Oct 2019
Edited: Andrei Bobrov
on 22 Oct 2019
bl = cellfun(@(x)x(:)',bl,'un',0);
n = numel(bl);
ii = cell(n,1);
for i = 1:n
ii{i} = num2cell(nchoosek(1:4,i),2);
end
a = cellfun(@(x)[bl{x}],cat(1,ii{:}),'un',0);
5 Comments
See Also
Categories
Find more on Multidimensional Arrays in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!