Package: distspec 0.3.0

Sebastian Funk

distspec: Probability Distributions with Certain or Uncertain Parameters

Represents probability distributions with fixed or potentially uncertain parameters, with tools to discretise, convolve, sample from and summarise them.

Authors:Sebastian Funk [aut, cre], James M. Azam [aut], Sam Abbott [aut]

distspec_0.3.0.tar.gz
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distspec_0.3.0.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
distspec/json (API)

# Install 'distspec' in R:

install.packages('distspec', repos = c('https://epiforecasts.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/epiforecasts/distspec/issues

Pkgdown/docs site:https://epiforecasts.io

On CRAN:

5.95 score 1 stars 2 packages 4 scripts 335 downloads 32 exports 5 dependencies

Last updated from:d8b8ca2c48. Checks:9 OK. Indexed: yes.

Target	Result	Time
linux-devel	OK	143
source / vignettes	OK	170
linux-release	OK	121
macos-release	OK	124
macos-oldrel	OK	100
windows-devel	OK	102
windows-release	OK	96
windows-oldrel	OK	86
wasm-release	OK	111

Exports:as_dist_spec Beta bound_dist cdf collapse convert_to_logmean convert_to_logsd Dirichlet discretise discretize dist_cdf dist_quantile Exp Exponential fix_parameters Fixed Gamma get_distribution get_parameters get_pmf has_uncertainty is_constrained LogNormal lower_bounds natural_params ndist new_dist_spec NonParametric Normal sample_dist sd Weibull

Dependencies:cli lifecycle primarycensored rlang truncnorm

Getting started with distspec

Rendered fromdistspec.Rmdusingknitr::rmarkdown

Last update: 2026-08-24
Started: 2026-07-20

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Creates a delay distribution as the sum of two other delay distributions.	+.dist_spec
Compares two delay distributions	!=.dist_spec ==.dist_spec
Coerce an object to a <dist_spec>	as_dist_spec as_dist_spec.default as_dist_spec.dist_spec as_dist_spec.numeric
Beta distribution	Beta
Define bounds of a <dist_spec>	bound_dist
Combines multiple delay distributions for further processing	c.dist_spec
Returns the cumulative distribution function of a delay distribution	cdf cdf.dist_spec cdf.multi_dist_spec
Collapse nonparametric distributions in a <dist_spec>	collapse collapse.dist_spec
Convert mean and sd to log mean for a log normal distribution	convert_to_logmean
Convert mean and sd to log standard deviation for a log normal distribution	convert_to_logsd
Dirichlet prior for a nonparametric distribution	Dirichlet
Discretise a <dist_spec>	discretise discretise.dist_spec discretize
Probability distributions	Distributions
Exponential distribution	Exp Exponential
Fix the parameters of a <dist_spec>	fix_parameters fix_parameters.dist_spec
Fixed (point-mass) distribution	Fixed
Gamma distribution	Gamma
Get the distribution of a <dist_spec>	get_distribution
Get parameters of a parametric distribution	get_parameters get_parameters.dist_spec
Get the probability mass function of a nonparametric distribution	get_pmf
Check whether a <dist_spec> is uncertain	has_uncertainty
Check if a <dist_spec> is constrained, i.e. has a finite maximum or nonzero CDF cutoff.	is_constrained is_constrained.dist_spec
Lognormal distribution	LogNormal
Returns the maximum of one or more delay distribution	max.dist_spec
Returns the mean of one or more delay distribution	mean.dist_spec
Internal function for generating a 'dist_spec' given parameters and a distribution.	new_dist_spec
Nonparametric distribution	NonParametric
Normal distribution	Normal
Plot PMF and CDF for a dist_spec object	plot.dist_spec
Prints the parameters of one or more delay distributions	print.dist_spec
Returns quantiles of a delay distribution	quantile.dist_spec quantile.multi_dist_spec
Sample from a distribution	sample_dist sample_dist.dist_spec sample_dist.multi_dist_spec
Weibull distribution	Weibull