How i can call a function 100 time?

Here is what i need to call 100 times and then record result in a vector

    function [r] = dieroll(n)
       r=0; % Number of time the dice been rolled
        Y = 0;
        % n = sum of the rolls
        while Y<n;
            r=r+1;
            Y = Y+randi(6,1);
        end
    end

[Joseph Cheng]

function [r] = dieroll(n)
     r=0; % Number of time the dice been rolled 
     Y = 0; % n = sum of the rolls 
     while Y<n; 
          r=r+1; 
          Y = Y+randi(6,1); 
     end
end

for simple reading. next time highlight the coded portion and click on the {}code button so it is easier to read. Check the preview to see that it does read well too.

Look at the documentation for while and for loops. the documentation there should be enough to get you where you need to go. what you have now is 90% there.

Answer 1

[Rick Rosson]

   for k = 1:100
       ...
       ...

   end

Answer 2

[Image Analyst]

To call dieroll() a hundred times, try this:

r = zeros(1,100);
n = 3; % Whatever you want...
% Toss 3 dice 100 times and sum the result and store in r.
for tossNumber = 1 : 100
  r(tossNumber) = dieroll(n);
end

function y = dieroll(n)
  % Roll die n times and sum the result.
  y = sum(randi(6, 1, n));

Answer 3

[Joseph Cheng]

so in your private message you clearied by :

thanks for the comment. Here is what i tried however, its not working. I acutally need to write another function which will call the posted function 100 times. then i need to record the result and do some descriptive statistics.

function [r] = dieroll(n) 
  for Y = 1:10000;
    r=0; % Number of time the dice been rolled 
    Y = 0; % n = sum of the rolls 
    while Y<n; 
      r=r+1; 
      Y = Y+randi(6,1); 
    end 
 end 
end

so this still doesn't negate looking at the the documentation. since you need to call the dieroll function and store it in array i'll leave this here http://blogs.mathworks.com/pick/2007/08/20/matlab-basics-video/ create another function similar to dieroll

function results = Ndieroll(Ntimes)

    for roll =1:Ntimes
      ......
    end
  end

by following what was given for the assignment ("create another function") you should be creating another function.

[Hydro]

Thanks Joseph, it was helpful. really appreciated

[Image Analyst]

Exactly what function were you hoping to call 100 times? dieroll() (like I assumed), or randi()?