# How to use normdst()

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Anqi Zhang el 18 de Mzo. de 2023
Comentada: the cyclist el 28 de Mzo. de 2023
anyone know why this function has 4 parameters?
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Torsten el 18 de Mzo. de 2023
You mean NormDist ?
John D'Errico el 18 de Mzo. de 2023
I checked. NormDist takes only 3 parameters anyway.

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### Respuestas (1)

Yash el 28 de Mzo. de 2023
Hi Anqi,
The normpdf function in Matlab is used to compute the probability density function (PDF) of a normal distribution.
The syntax of the function is as follows:
y = normpdf(x,mu,sigma)
where:
• x is the vector of values at which to evaluate the PDF
• mu is the mean of the distribution
• sigma is the standard deviation of the distribution
The output y is a vector of the same size as x, containing the PDF values at each point.
Note that normpdf requires at least three inputs, x, mu, and sigma, and the function computes the PDF of a normal distribution with mean mu and standard deviation sigma evaluated at the values in x.
It is possible that you may be referring to a different function called normdst, which is not a built-in function in Matlab. Without more information about the specific implementation of normdst you are using, it is difficult to say why it has four parameters.
Let me know if you have any other queries.
I hope this helps :)
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the cyclist el 28 de Mzo. de 2023
Note that @Anqi Zhang asked about a mysterious function called normdst(), that takes 4 parameters. Not normpdf, which can take 1, 2, or 3.

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