清空筛选条件
清空筛选条件

calculate the PMF of y (sum of three dices) and plot it

12 次查看（过去 30 天）
Ee
Ee 2021-10-28
评论： Ee 2021-10-31
Hello
I pretty confused about how to calculate the PMF of sum of three dices (represented by y such as 3,4,5...18) and how to plot its PMF using Matlab.
I feel like we need to use hist function but have no idea where to start. Hope someone can help me figure out!

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2021-10-29
Not sure what PMF is. Did you ever actually try histogram()?
numRolls = 1000000;
numDice = 3;
dieFaces = randi([1, 6], numRolls, numDice);
theSums = sum(dieFaces, 2);
histObject = histogram(theSums, 'Normalization','pdf')
grid on;
xlabel('Sums');
ylabel('PDF')
  7 个评论
显示 5更早的评论
Paul
Paul 2021-10-31
One you know the PMF, for example from the Values of histObject above, the function
doc cumsum
would be of interest for computing the CDF. The functions
doc stem
doc stairs
would be of interest for plotting the CDF.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Descriptive Statistics and Visualization 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by