cobinning values in an array

function [hor vrt dgr dgl] = matbrkup(M) [x,y] = size(M); for i = 1:x for j = 1:y z = cell2mat(M(i,j)); n = sum(z); m = sum(z,2); [s,d] = spdiags(z); s1 = sum(s); [t,d] = spdiags(z'); t1 = sum(t); a = max(n); b = max(m); c = max(t1); d = max(s1); if (a > length(z)/3) vrt = 1; else vrt = 0; end; if (b > length(z)/3) hor = 1; else hor = 0; end; if (c > length(z)/3) dgr = 1; else dgr = 0; end; if (d > length(z)/3) dgl = 1; else dgl = 0; end; w = cat(2,hor,vrt,dgr,dgl) end; end;

y = matbrkup(x);

w =

     1     1     0     0
w =

     1     0     0     0
w =

     0     0     0     0
w =

     1     1     0     0
w =

     1     0     0     0
w =

     0     0     0     0
w =

     0     1     0     0
w =

     0     0     0     0
w =

     0     0     0     0

i want all the values of w to be combined into on array and im not very familiar with matlab and i tried using the cat function but im not sure why it doesnt work or where to go from here..

[Walter Roberson]

http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup

Answer 1

[Andrei Bobrov]

in your case:

w{i,j} = cat(2,hor,vrt,dgr,dgl);

variant

% e.g. data:

M = reshape(arrayfun(@(i1){rand(randi([3 8]),randi([4 10]))},1:6,'un',0),3,[]);

% solution:

y = cellfun(@(x)cell2mat(x),M,'un',0);
out1 = cellfun(@(x)[max(sum(x)),max(sum(x,2)),...
              max(sum(spdiags(x))) max(sum(spdiags(x(:,end:-1:1))))],y,'un',0);
k = cellfun(@length,y,'un',0);
out = cellfun(@(a,b)a>b/3,out1,k,'un',0);

variant with loop for..end

out3 = cell(size(M));
for i1 = 1:numel(M)
    a = cell2mat(M{i1});
    b = max(sum(a));
    c = max(sum(a,2));
    d = max(sum(spdiags(a)));
    r = max(sum(spdiags(a(:,end:-1:1))));
    out3{i1} = [b c d r] > length(a)/3;
end