distributions3 (version 0.2.2)

pdf.Categorical: Evaluate the probability mass function of a Categorical discrete distribution

Description

Evaluate the probability mass function of a Categorical discrete distribution

Usage

# S3 method for Categorical
pdf(d, x, ...)
# S3 method for Categorical
log_pdf(d, x, ...)

Value

A vector of probabilities, one for each element of x.

Arguments

d

A Categorical object created by a call to Categorical().

x

A vector of elements whose probabilities you would like to determine given the distribution d.

...

Unused. Unevaluated arguments will generate a warning to catch mispellings or other possible errors.

Examples

set.seed(27)

X <- Categorical(1:3, p = c(0.4, 0.1, 0.5))
X

Y <- Categorical(LETTERS[1:4])
Y

random(X, 10)
random(Y, 10)

pdf(X, 1)
log_pdf(X, 1)

cdf(X, 1)
quantile(X, 0.5)

# cdfs are only defined for numeric sample spaces. this errors!
# cdf(Y, "a")

# same for quantiles. this also errors!
# quantile(Y, 0.7)