LOGPDF Function

Returns the logarithm of a probability density (mass) function.

Category:	Probability
Alias:	LOGPMF
See:	PDF Function

Syntax

LOGPDF('dist',quantile,parm-1,...,parm-k)

Required Arguments

'dist'

is a character constant, variable, or expression that identifies the distribution. Valid distributions are as follows:

Distribution	Argument
Bernoulli	`'BERNOULLI'`
Beta	`'BETA'`
Binomial	`'BINOMIAL'`
Cauchy	`'CAUCHY'`
Chi-Square	`'CHISQUARE'`
Exponential	`'EXPONENTIAL'`
F	`'F'`
Gamma	`'GAMMA'`
Generalized Poisson	`'GENPOISSON'`
Geometric	`'GEOMETRIC'`
Hypergeometric	`'HYPERGEOMETRIC'`
Laplace	`'LAPLACE'`
Logistic	`'LOGISTIC'`
Lognormal	`'LOGNORMAL'`
Negative binomial	`'NEGBINOMIAL'`
Normal	`'NORMAL'\|'GAUSS'`
Normal mixture	`'NORMALMIX'`
Pareto	`'PARETO'`
Poisson	`'POISSON'`
T	`'T'`
Tweedie	`'TWEEDIE'`
Uniform	`'UNIFORM'`
Wald (inverse Gaussian)	`'WALD'\|'IGAUSS'`
Weibull	`'WEIBULL'`

Note: Except for T, F, and NORMALMIX, you can minimally identify any distribution by its first four characters.

quantile

is a numeric constant, variable, or expression that specifies the value of a random variable.

parm-1,...,parm-k

are optional shape, location, or scale parameters appropriate for the specific distribution.

Details

The LOGPDF function computes the logarithm of the probability density (mass) function from various continuous and discrete distributions. For more information, see the PDF Function.