naginterfaces.library.stat.pdf_normal_vector(ilog, x, xmu, xstd)[source]

pdf_normal_vector returns a number of values of the probability density function (PDF), or its logarithm, for the Normal (Gaussian) distributions.

For full information please refer to the NAG Library document for g01kq


The value of determines whether the logarithmic value is returned in PDF.

, the probability density function is returned.

, the logarithm of the probability density function is returned.

xfloat, array-like, shape

, the values at which the PDF is to be evaluated.

xmufloat, array-like, shape

, the means.

xstdfloat, array-like, shape

, the standard deviations.

pdffloat, ndarray, shape

or .

ivalidint, ndarray, shape

indicates any errors with the input arguments, with

No error.


(errno )

On entry, .

Constraint: or .

(errno )

On entry, .

Constraint: .

(errno )

On entry, .

Constraint: .

(errno )

On entry, .

Constraint: .

(errno )

On entry, at least one value of was invalid.

Check for more information.


The Normal distribution with mean , variance ; has probability density function (PDF)

The input arrays to this function are designed to allow maximum flexibility in the supply of vector arguments by re-using elements of any arrays that are shorter than the total number of evaluations required. See the G01 Introduction for further information.