Type function for plotting jittered points. Arguments are passed to jitter.
type_jitter(factor = 1, amount = NULL)
factor
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numeric. |
amount
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numeric; if positive, used as amount (see below), otherwise, if NULL): factor * d/5 where d is about the smallest difference between x values.
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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.
library("tinyplot")
# "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))