Multivariate normal probability density function
returns ann-通过-y
= mvnpdf(X
)1
向量y
containing the probability density function (pdf) values for thed-dimensional multivariate normal distribution with zero mean and identity covariance matrix, evaluated at each row of then-通过-dmatrixX
。有关更多信息,请参阅Multivariate Normal Distribution。
In the one-dimensional case,Sigma.
is the variance, not the standard deviation. For example,mvnpdf.(1,0,4)
is the same asnormpdf(1,0,2)
,在哪里4
是方差和2
是标准偏差。
[1] Kotz,S.,N. Balakrishnan和N. L. Johnson。连续多变量分布:第1卷:型号和应用。2nd ed. New York: John Wiley & Sons, Inc., 2000.