How to find parameters of binomial distribution?

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Clarisha Nijman
Clarisha Nijman 2019-1-31
评论： Star Strider 2019-2-2
Dear all,
What code can I use in matlab to find the parameters of a binomial distribution? This question is very big. So I am restricting it to a specific situation.
X is binomiallly distributed with parameter n and fraction p. The parameter p is unknown.
What function in matlab can help me to find that parameter if for example it is known that X=randi(10,20,1); P(X<=4)=0.3?
Thank you in advance.

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Star Strider
Star Strider 2019-1-31
If you have the Statsitics and Machine Learning Toolbox, see if the binofit (link) function will do what you want.
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Clarisha Nijman
Clarisha Nijman 2019-2-2
That is it!!!!!!
the problem was the interpretation of the first parameter of the binofit function.
But now I understand, x is not the number of the succeses, but the probability of success in a given binomial trial based on the ACTUAL number of successes,
Once more thanks a lot!!!!

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