method_freqpoly_1d: Univariate frequency polygon HDR estimator

In ggdensity: Interpretable Bivariate Density Visualization with 'ggplot2'

Univariate frequency polygon HDR estimator

Description

Function used to specify univariate frequency polygon density estimator for get_hdr_1d() and layer functions (e.g. geom_hdr_rug()).

Usage

method_freqpoly_1d(bins = NULL)

Arguments

bins	Number of bins. Defaults to normal reference rule (Scott, pg 59).

Details

For more details on the use and implementation of the method_*_1d() functions, see vignette("method", "ggdensity").

References

Scott, David W. Multivariate Density Estimation (2e), Wiley.

Examples

df <- data.frame(x = rnorm(1e3))

# Strip chart to visualize 1-d data
p <- ggplot(df, aes(x)) +
  geom_jitter(aes(y = 0), width = 0, height = 2) +
  scale_y_continuous(name = NULL, breaks = NULL) +
  coord_cartesian(ylim = c(-3, 3))

p

p + geom_hdr_rug(method = method_freqpoly_1d())

# The resolution of the frequency polygon estimator can be set via `bins`
p + geom_hdr_rug(method = method_freqpoly_1d(bins = 100))

# Can also be used with `get_hdr_1d()` for numerical summary of HDRs
res <- get_hdr_1d(df$x, method = method_freqpoly_1d())
str(res)

ggdensity documentation built on Feb. 16, 2023, 10:37 p.m.