getkde: Adaptive kernel density estimates

In tobiste/laftr: Calculates the ages from LA-ICP-MS based fission track dating

Adaptive kernel density estimates

Description

Modification of ggplot2::stat_density() for kernel density estimates using a combination of the Botev (2010) bandwidth selector and the Abramson (1982) adaptive kernel bandwidth modifier.

Usage

getkde(
  x,
  from = NA,
  to = NA,
  bw = NA,
  adaptive = TRUE,
  log = FALSE,
  n = 512,
  weights = NULL,
  ...
)

Arguments

x	numeric vector. Ages
from	numeric. minimum age of the time axis. If NULL, this is set automatically
to	numeric. maximum age of the time axis. If NULL, this is set automatically
bw	numeric. the bandwidth of the KDE. If NULL, bw will be calculated automatically using the algorithm by Botev et al. (2010).
adaptive	logical flag controlling if the adaptive KDE modifier of Abramson (1982) is used
log	logical. transform the ages to a log scale if TRUE
n	integer. horizontal resolution (i.e., the number of segments) of the density estimate.
weights	numeric vector of non-negative observation weights, hence of same length as x. The default NULL is equivalent to weights = rep(1/nx, nx) where nx is the length of (the finite entries of) x[]. If na.rm = TRUE and there are NA's in x, they and the corresponding weights are removed before computations. In that case, when the original weights have summed to one, they are re-scaled to keep doing so. Will be ignored is adaptive is TRUE.
...	optional arguments to be passed on to R's density function.

tobiste/laftr documentation built on Feb. 10, 2025, 11:10 p.m.