Unknown error in running code and applying IF condition in loop

I am running this code but after running I get the error Undefined variable cell_worker_sum. and I cannot check the values of variables in the last loop.. Is there any error in applying IF condition? _I want to apply the loop on those matrices of all_comb_of_workers in which sum of each column is 1 or greater than one.

no_of_machines=7;
no_of_cells=3;
No_of_Parts = 6;
Make_topart_power=[12; 7; 4; 6; 12; 6; 8];
move_cost=[12;12;12;12;12;12];
demand=[600 550 500 520 620 500];
labor_cost=[1.04; 1.2; 1.44; 1.6];
OP1=[10  0  0  10  0  20  15;10  13  0  0  12  0  15];
OP2=[0  10  10  15  0  0  20;11  0  13  0  17  10  0];
OP3=[10  0  0  12  11  0  0;0  11  18  0  0  0  17];
OP4=[10  0  0  0  19  0  14;0 14  0  17  0  10  0];
OP5=[18  13  0  0  0  15  0;10 12  0  0  10  0  11];
OP6=[0  10  0  0  0  10  15;12 11 0  13  0  15  0];
setup_cost=[20; 30; 25; 40; 45; 30];
hold_cost=[4; 3; 5; 3; 4; 5]; 
batch_size=(demand'.*setup_cost.*2./hold_cost).^0.5;
no_of_batches=demand'./batch_size;
M1=[1 0 0 0;0 0 1 0];
M2=[0 0 1 0;0 0 0 1];
M3=[0 1 0 0;0 0 0 1];
M4=[1 0 0 0;0 0 1 0];
M5=[0 1 0 0;0 0 0 1];
M6=[0 0 1 0;0 0 0 1];
M7=[0 1 0 0;0 0 0 1];

E= [OP1;OP2;OP3;OP4;OP5;OP6];
Ez = [size(OP1,1) size(OP2,1) size(OP3,1) size(OP4,1) size(OP5,1) size(OP6,1)];
Ec = [0 cumsum(Ez(1:end-1))];
Ea = allcomb(1:Ez(1),1:Ez(2),1:Ez(3),1:Ez(4),1:Ez(5),1:Ez(6));
En = size(Ea,1);
all_comb_of_OP_routes = cell(1,En);
for i=1:En
    all_comb_of_OP_routes{i} =E(Ec+Ea(i,:),:);
end

CELL = zeros(no_of_cells^no_of_machines,no_of_machines);
t = 0;
for k = 0:(no_of_cells^no_of_machines)-1  %k=(2187-1=2186)
    s = dec2base(k,no_of_cells,no_of_machines);
    if length(unique(s))==no_of_cells
        t = t+1;
        CELL(t,:) = s-'0'+1;
    end
end
CELL = CELL(1:t,:);
combination_array=num2cell(CELL,2);

for c=1:numel(combination_array )                            
    R=1:numel(combination_array{c});
    Z = zeros(R(end),max(combination_array{c}));
    Z(sub2ind(size(Z),R,combination_array{c})) = 1;
    allCells_array{c}=Z; % machine cell matrix array of all combinations
end

for i=1:numel(all_comb_of_OP_routes)
    energy_consumption=(all_comb_of_OP_routes{i}*Make_topart_power).*demand';
    total_energy_cost(i)=(sum(energy_consumption))*0.01;
    for c=1:numel(allCells_array)
        movement=(all_comb_of_OP_routes{i})*allCells_array{c};
        movement=movement>0;
        total_movement_cost=sum(bsxfun(@times,bsxfun(@times,sum(movement,2)-1,no_of_batches),move_cost));
        total_all(i,c)=total_movement_cost;
    end
end
[minValue,index]= min(total_all(:));
[rowmin,colmin]=find(total_all==minValue);

for v=1:numel(rowmin)
    for w=1:numel(colmin)
        X{v}=all_comb_of_OP_routes{rowmin(v)};
        Y{w}=allCells_array{colmin(w)};
    end
end
ind=true(1,numel(X));
for ii=1:numel(X)-1
    for jj=ii+1:numel(X)
        if isequal(X{ii},X{jj})
            ind(jj)=false;
        end
    end
end
XX=X(ind);

celltimes=@(XX) sum(bsxfun(@times,XX,demand'),1);
total_timereq_for_all_machines=cellfun(celltimes,XX,'UniformOutput',false);
for n=1:numel(allCells_array)
    for v=1:numel(XX)
        Time_of_machine_inCells{n,v} = bsxfun(@times, allCells_array{n}, total_timereq_for_all_machines{v}');
    end
end

M= [M1;M2;M3;M4;M5;M6;M7];
zz = [size(M1,1) size(M2,1) size(M3,1) size(M4,1) size(M5,1) size(M6,1) size(M7,1)];
cc = [0 cumsum(zz(1:end-1))];
aa = allcomb(1:zz(1),1:zz(2),1:zz(3),1:zz(4),1:zz(5),1:zz(6),1:zz(7));
nn = size(aa,1);
all_comb_of_workers = cell(1,nn);
for j=1:nn
    all_comb_of_workers{j} = M(cc+aa(j,:),:);
end
for k=1:numel(Time_of_machine_inCells)
    for j=1:numel(all_comb_of_workers)
        worker_matrix=all_comb_of_workers{j};
        columnSums=sum(worker_matrix,1);
        if all(columnSums>1)
            all_comb_of_workers{j}=worker_matrix;
            cell_worker=Time_of_machine_inCells{k}'*all_comb_of_workers{j};
            cell_worker_sum(k,j)=sum(bsxfun(@times,sum(cell_worker)',labor_cost));
        end
    end
end
[minvalue,ind]=min(cell_worker_sum(:));
[row,col]=find(cell_worker_sum==minvalue);
toc;

http://www.mathworks.com/matlabcentral/fileexchange/10064-allcomb-varargin-

Answer 1

[the cyclist]

I suggest you use the debugging capability. Specifically, set a breakpoint at line 100, and see if the values of columnSums are what you expect.

Making a guess, though ...

Did you mean to use

if any(columnSums>1)

rather than

if all(columnSums>1)

?

[summyia qamar]

I mean the sum of all columns must be greater than 1 or equal to.. its like an assignment matrix in which each column should get at least one.

[summyia qamar]

still giving Undefined variable error

[the cyclist]

So, maybe you meant

if all(columnSums>=1)

Notice that I used ">=" rather than ">".

[summyia qamar]

is this logical statement correct according to the condition? I dont think its working as I want it to..

[the cyclist]

I don't know, and your language is not clear enough for me to be sure. Maybe you could give several examples of values of columnsSums, and whether they should trigger the if statement or not.

Again, I suggest you use the debugger, and check for yourself.