Found the answer. Thanks

Found the answer. Thanks

[James Tursa]

Please post a short example for us so we know what exactly you are trying to do. E.g., post a small example input matrix and then post the result(s) you would be expecting. Note that trying to name variables x1, x2, etc in a loop fashion is not a good idea.

Answer 1

[James Tursa]

Do you mean like this?

[rows cols] = size(a);
nDiags = rows + cols - 1;
b=fliplr(a);
x = zeros(min(rows,cols),nDiags);
for i=1:nDiags
    d = diag(b,cols-i);
    x(1:numel(d),i)=d;
end

Produces:

>> a
a =
     1     2     3     4     5
    12    -4     9    11    83
     2     4     6     8    24
    64     0    21    33    11
   104    63    16    72    76

>> x
x =
     1     2     3     4     5    83    24    11    76
     0    12    -4     9    11     8    33    72     0
     0     0     2     4     6    21    16     0     0
     0     0     0    64     0    63     0     0     0
     0     0     0     0   104     0     0     0     0

[James Tursa]

OK, how about this?

[rows cols] = size(a);
nDiags = rows + cols - 1;
b=fliplr(a);
c = cell(nDiags,1);
for i=1:nDiags
    c{i} = diag(b,cols-i);
end
x = vertcat(c{:})';