dens: Density plots

In rmcelreath/rethinking: Statistical Rethinking book package

Density plots

Description

Convenient interface for plotting density estimates.

Usage

dens( x , adj=0.5 , norm.comp=FALSE , main="" , show.HPDI=FALSE , show.zero=FALSE , rm.na=TRUE , add=FALSE , ...)

Arguments

x	Vector of values to construct density from, or data frame. If x is a data frame, then dens plots a grid of densities, one for each column in x.
adj	width of density kernal.
norm.comp	If TRUE, overlays normal density comparison.
show.HPDI	If a numeric value, displays HPDI of same width. For example, show.HPDI=0.95 shows a 95 percent HPDI inside the density.
show.zero	If TRUE, draws a vertical line at location of zero on horizonal axis.
rm.na	If TRUE, removes NAs before computing density
add	If TRUE, overlays density on an existing plot
...	Other parameters to pass to density, which constructs the density estimates.

Details

This function merely provides a convenient interface for plotting density estimates produced by density. It handles both single vectors and multiple vectors, contained within a data frame.

Highest Posterior Density Intervals (HPDI) are calculated by HPDinterval in the coda package.

Author(s)

Richard McElreath

See Also

density, HPDinterval

rmcelreath/rethinking documentation built on Aug. 26, 2024, 5:54 p.m.