Matlab Generate a probability histogram of the number of rol

[Matlab] Generate a probability histogram of the number of rolls required before a “7” appears while rolling two dice.

Here is a part of the code. I just need some parts that will track count the number of rolls it take until getting a sum of 7 from both die.

clear all
rolls= 10000;

for r=1:1:rolls
    x=floor(6*rand(1)+1);
    y=floor(6*rand(1)+1);
    s(r)=x+y;

end
i=1:1:13;
[x,n]=hist(s,i)

bar(n,x)
stem(n,x)
axis([0 14 0 2000])

Solution

Clear all

rolls= 10000

for r= 1:1:rolls

P=0

x=floor (6*rand(1)+1)

Y=floor (6*rand(1)+1)

for I = 1:1:13

S(r)=x+y

if S(r)==7;

P=p+1

end

end

[x,n]=hist(s,I)

bar (n,x)

stem(n,x)

axis ([0 14 0 2000])