type_jitter: Jittered points plot type

In tinyplot: Lightweight Extension of the Base R Graphics System

Jittered points plot type

Description

Type function for plotting jittered points. Arguments are passed to jitter.

Usage

type_jitter(factor = 1, amount = NULL)

Arguments

factor	numeric.
amount	numeric; if positive, used as amount (see below), otherwise, if = 0 the default is factor * z/50. Default (NULL): factor * d/5 where d is about the smallest difference between x values.

Details

The result, say r, is r <- x + runif(n, -a, a) where n <- length(x) and a is the amount argument (if specified).

Let z <- max(x) - min(x) (assuming the usual case). The amount a to be added is either provided as positive argument amount or otherwise computed from z, as follows:

If amount == 0, we set a <- factor * z/50 (same as S).

If amount is NULL (default), we set a <- factor * d/5 where d is the smallest difference between adjacent unique (apart from fuzz) x values.

Examples

# "jitter" type convenience string
tinyplot(Sepal.Length ~ Species, data = iris, type = "jitter")

# Use `type_jitter()` to pass extra arguments for customization
tinyplot(Sepal.Length ~ Species, data = iris, type = type_jitter(factor = 0.5))

tinyplot documentation built on Nov. 5, 2025, 7:37 p.m.