expectopatronum / alea

R package for casting dice.

... iacta alea est

-- Gaius Julius Caesar

alea

R package for casting dice, including dice for Dungeons & Dragons and special dice like the Sicherman dice.

Overview

alea consists of one main function cast_dice() with parameters for different situations (see below) and several dice like d4(), d20(), sicherman() which can be used without additional parameters. The interface for the main function is cast_dice(sides = 1:6, n_tries = 1, sum = FALSE).

• sides: can either be an integer value (maximum value on a standard dice) or a vector of sides. 6 and 1:6 both result in casting a 6-sided dice.
• n_tries: how often the dice should be cast.
• sum: whether the result of casting the dice should be summed.

Installation

You can install alea from github with:

# install.packages("devtools")
devtools::install_github("expectopatronum/alea")

Load the package:

library(alea)

Other packages

Since casting dice is a rather important and easily programmed task, there exist a few other R package. I made a list of the ones I found and tried a few examples here.

Examples

These examples show the usage of some of the dice in the package.

set.seed(24) # this seed was randomly chosen by casting a d60

cast_dice()
#> [1] 2

cast_dice(20, 3)
#> [1]  5 15 11

cast_dice(c(2, 4, 6, 8, 10))
#> [1] 8

d20()
#> [1] 19

d6(4, TRUE)
#> [1] 14