Difference and probability in plot

Hello I tried to plot this but it's show me "Vectors must be the same length.

Error in (line 17)

plot(difference,probability,'b--'"

would you please help me to fix the problem?

thanks in advance.

difference=[];
probability=[];
for diff=-5:1:5
    sum=0;
    for g=1:6
        for r=1:6
            
            if(g-r==diff)
                sum=sum+(1/36);
            end
        end
    end
    differnce=[difference diff];
    probability=[probability sum];
end
figure
plot(difference,probability,'b--')
xlabel('D');
ylabel('P');
axis([-5 5 0 .2]);

Answer 1

[KSSV]

thedifference=-5:1:5 ;
N = length(thedifference) ; 
probability=zeros(N,1) ; 
for i = 1:N
    thediff = thedifference(i) ; 
    thesum=0;
    for g=1:6
        for r=1:6
            
            if(g-r==thediff)
                thesum=thesum+(1/36);
            end
        end
    end
    probability(i) = thesum;
end

figure
plot(thedifference,probability,'b--')
xlabel('D');
ylabel('P');
axis([-5 5 0 .2]);

[madhan ravi]

Naming a variable sum and diff is a bad idea.

[KSSV]

Yes...you are right.......changed it. @Rana, never name variables on the names of inbuilt functions.

[Brave A]

thanks it's work.

but how to make x axis gives all values from -5 to 0 to 5 not only those values, I need all values in between.

[KSSV]

Give your desired values in the line:

thedifference=-5:1:5 ;

[Brave A]

would you please answer here;

https://www.mathworks.com/matlabcentral/answers/478785-joint-histogram-2-d