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Creating a matrix with binomial distribution in elements.

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Shane Kosir
Shane Kosir 2016-10-18
编辑： Massimo Zanetti 2016-10-19
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.

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回答（1 个）

Massimo Zanetti
Massimo Zanetti 2016-10-19
Check for "binornd" function in Matlab docs
  2 个评论
Shane Kosir
Shane Kosir 2016-10-19
I know that function, but how can you create a matrix and specify that the elements are the binornd function/
Massimo Zanetti
Massimo Zanetti 2016-10-19
编辑：Massimo Zanetti 2016-10-19
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....

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