Creating a matrix with binomial distribution in elements.

How can I create a 6 × 6 matrix with P (Xi = j − 1) in the (i, j)-position where Xi has the binomial distribution with parameters n = i−1 and p = 1/4.

[José-Luis]

https://se.mathworks.com/help/stats/binornd.html

Answer 1

[Massimo Zanetti]

Check for "binornd" function in Matlab docs

[Shane Kosir]

I know that function, but how can you create a matrix and specify that the elements are the binornd function/

[Massimo Zanetti]

So you don't need to extract a random number, instead you need to compute the probability. So, it is:

N=repmat((0:5)',1,6);
K=N';
P=1/4;

R = binopdf(K,N,P)

Notice that the triangular upper part is null, because there is 0 probability to get K successes if the numer of trials N is less than K....