How to add a condition in programming coding ?

for v=1:j
simdone = 1;
row = 1;
while (simdone == 1)
	if ((Co1ap1{v}(row,i+1) <= Co1ap1{v}(row+1,i+1)) && (Co1ap1{v}(row,i+2) > Co1ap1{v}(row+1,i+2) ))
		row = row + 1;
	else
		Co1ap1{v}(row+1,:) = []; % delete row if condition does not match #here i want to make changes ,i want to keep the all row values ,before if the condition doesnot match then it was deleting the row but now i want to keep the rows not delete the rows
	end
	if (row == size((Co1ap1{v}),1))
		simdone = 0;        % break the while loop if index is out of bound
	end
end
disp(Co1ap1{v})

end

i+1 is the column number .

before when i was doing the sorting that time if any rows values does not match my if condition then i was removing that rows from my metrix ,but now i want to keep that rows at the end of my metrix ,like no rows should be delete i want to keep my metrix size same .But the metrix row's will follow the condition and then they will be in a metrix.

AS a example

A= [12 20 ; 14 16; 16 22; 18 10; 13 12 ;20 5]

after running the above matlab code the result

A=[12 20;14 16;18 10;20 5]

but now i want to keep the other solutions also at the end with my result , don't want to delete them from my solution set

Like

A=[12 20;14 16;18 10;20 5; 16 22;13 12]

Answer 1

[Voss]

Put all the deleted rows in another matrix, and append them to the end of Co1ap1{v} after the while loop:

% setting up the example:
Co1ap1 = {[12 20 ; 14 16; 16 22; 18 10; 13 12 ;20 5]};
j = 1;
i = 0;


for v=1:j
    simdone = 1;
    row = 1;
    add_to_end = zeros(0,size(Co1ap1{v},2));
    while simdone == 1
        if Co1ap1{v}(row,i+1) <= Co1ap1{v}(row+1,i+1) ...
                && Co1ap1{v}(row,i+2) > Co1ap1{v}(row+1,i+2)
            row = row+1;
        else
            add_to_end(end+1,:) = Co1ap1{v}(row+1,:);
            Co1ap1{v}(row+1,:) = [];
        end
        if row == size(Co1ap1{v},1)
            simdone = 0;
        end
    end
    Co1ap1{v} = [Co1ap1{v}; add_to_end];
    disp(Co1ap1{v})
end

    12    20
    14    16
    18    10
    20     5
    16    22
    13    12