How do I subtract number from Cell?

I have a cell That is 6x2 and im trying to subtract 1 (or add -1 ) to the first row and it tell me that -/+ does not support type "cell" .. i tried to convert to double but it also did not let me .. i added a photo of what i tried-

^Trying to subtract 1 from here

thank you !!

[Sulaymon Eshkabilov]

Can you please upload your sample data HuffTree?

[Jacob Assayag]

Dice1=[1/7 1/7 1/7 1/7 1/7 2/7];
Dice2=[1/7 1/7 2/7 1/7 1/7 1/7];
Source=zeros(1,length(Dice1));

for i=1:length(Dice1)
    for j=1:length(Dice2)
    switch abs(i-j)
        case 0
        Source(1)= Source(1)+Dice1(i)*Dice2(j);
        case 1 
        Source(2)=Source(2)+Dice1(i)*Dice2(j);
        case 2 
        Source(3)=Source(3)+Dice1(i)*Dice2(j);
        case 3  
         Source(4)=Source(4)+Dice1(i)*Dice2(j);
        case 4
         Source(5)=Source(5)+Dice1(i)*Dice2(j);
        case 5
         Source(6)=Source(6)+Dice1(i)*Dice2(j);
    end
    end
end

A=1:6;
A=A'
HuffTree=huffmandict(1:6,Source);
disp(HuffTree)
X=cell2mat(HuffTree(:,1))-1;
Y={X};
T=num2cell(Y,A);
T=T{1,1};

HuffTree(:,1)=T{1,1}

Thank You !

[Jan]

A simplification for the code:

for i = 1:length(Dice1)
    for j = 1:length(Dice2)
        d = abs(i - j) + 1;
        Source(d) = Source(d) + Dice1(i) * Dice2(j);
    end
end

More efficient, by harder to understand:

ind = abs((1:length(Dice1)) - (1:length(Dice2)).') + 1;
val = (Dice1 .* Dice2.');
Source = accumarray(ind(:), val(:)).';

[Jacob Assayag]

thanks but any addressing to my question?

Answer 1

[Jan]

Dice1=[1/7 1/7 1/7 1/7 1/7 2/7];
Dice2=[1/7 1/7 2/7 1/7 1/7 1/7];
ind = abs((1:length(Dice1)) - (1:length(Dice2)).') + 1;
val = (Dice1 .* Dice2.');
Source = accumarray(ind(:), val(:)).';

HuffTree = huffmandict(1:6,Source);
X = cell2mat(HuffTree(:,1)) - 1;
HuffTree(:,1) = num2cell(X);

More direct:

HuffTree(:,1) = cellfun(@(x) {x - 1}, HuffTree(:, 1))

HuffTree = 6×2 cell array
    {[0]}    {[  0 0 1]}
    {[1]}    {[    0 1]}
    {[2]}    {[    1 0]}
    {[3]}    {[    1 1]}
    {[4]}    {[0 0 0 0]}
    {[5]}    {[0 0 0 1]}

But why not creating the Tree correctly from the beginning?

HuffTree = huffmandict(0:5, Source);