MATLAB Help - Rolling Dice Simulation

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Aaron
Aaron 2011-3-10
I have to write a script that uses the user input to roll a certain amount of dice, with a certain amount of sides, with a certain amount of rolls , and a certain amount of trials.
I have the whole user input part down, but I'm having trouble writing a function for rolling the dice.
function [ X ] = Dice( N, S, T, R ) % Dice simulates a random selection of numbers which is similar to how a % dice is rolled % % N is the number of dice the user wants to roll % S is the number of sides on the dice % T is the number of trials that the user wants to run. % R is the number of rolls that the user wants to roll each dice.
D =ceil(S*rand(1,N))
% I used this for one roll of the dice
Counts = hist(D,[1:S]);
% Then I used this to count how many of each number showed up
How do I write the code so that I can factor in the amount of trials and rolls? I know I probably have to do something with for loops, but I'm very confused and I can't think of anything at the moment.

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回答（1 个）

Oleg Komarov
Oleg Komarov 2011-3-10
S = 6; % six faces
R = 3; % each dice is rolled 3 times
N = 10; % roll 10 dice at once
T = 2; % repeat all 2 times
Out = randi([1 S],[R N T])
Out(:,:,1) =
5 6 2 6 6 1 5 1 5 3
6 4 4 1 3 3 6 6 5 4
1 1 6 6 5 6 4 6 5 2
Out(:,:,2) =
5 1 5 1 5 3 5 5 1 3
1 1 2 3 5 3 5 4 3 4
2 5 6 3 2 4 2 1 6 2
Each slice (on the third dimension) is a trial.
Each column is a dice rolled 3 times.
Oleg

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