Probablity distribution calculation for a vector

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Niki 2014-8-21

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https://ww2.mathworks.cn/matlabcentral/answers/151757-probablity-distribution-calculation-for-a-vector

评论： Adam 2014-8-21

I want to use the following function Y = normpdf(X,mu,sigma)

X is a vector of 100*1 for each X I have a mu and a sigma , do you know how to do that ?

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Niki 2014-8-21

yes

Adam 2014-8-21

So what is the problem? You have a vector X, a vector mu and a vector sigma and a function that expects all these as inputs.

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Roger Stafford 2014-8-21

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https://ww2.mathworks.cn/matlabcentral/answers/151757-probablity-distribution-calculation-for-a-vector#answer_149345

在 MATLAB Online 中打开

From the documentation for normpdf at

http://www.mathworks.com/help/stats/normpdf.html

"Y = normpdf(X,mu,sigma) computes the pdf at each of the values in X using the normal distribution with mean mu and standard deviation sigma. X, mu, and sigma can be vectors, matrices, or multidimensional arrays that all have the same size. A scalar input is expanded to a constant array with the same dimensions as the other inputs. The parameters in sigma must be positive."

That should answer your question.