plot_helper

A helper function for the plot methods that does most of the work under
the hood.

internal

Handles univariate non-parametric density estimation with
parametric starts and asymmetric kernels in a simple and flexible way.
Kernel density estimation with parametric starts involves fitting a
parametric density to the data before making a correction with kernel
density estimation, see Hjort & Glad (1995) <doi:10.1214/aos/1176324627>.
Asymmetric kernels make kernel density estimation more efficient on bounded
intervals such as (0, 1) and the positive half-line. Supported asymmetric
kernels are the gamma kernel of Chen (2000) <doi:10.1023/A:1004165218295>,
the beta kernel of Chen (1999) <doi:10.1016/S0167-9473(99)00010-9>, and the
copula kernel of Jones & Henderson (2007) <doi:10.1093/biomet/asm068>.
User-supplied kernels, parametric starts, and bandwidths are supported.

Jonas Moss

kdensity

Kernel Density Estimation with Parametric Starts and Asymmetric
Kernels

Martin Tveten

plot_helper function

<dl><dt>x</dt>
<dd>A <code>kdensity</code> object.</dd>
<dt>range</dt>
<dd>An optional range vector; like <code>x</code> in <code>plot.default</code>.</dd>
<dt>plot_start</dt>
<dd>Logical; if <code>TRUE</code>, plots the parametric start only.</dd>
<dt>zero_line</dt>
<dd>Logical; if <code>TRUE</code>, adds a line at <code>y = 0</code>.</dd>
<dt>ptype</dt>
<dd>The kind of plot to make</dd>
<dt>...</dt>
<dd>Passed to plot.default.</dd></dl>

Arguments

Helper function for the plot methods. — plot_helper

<dl>

<dt>x</dt>
<dd>A <code>kdensity</code> object.</dd>


<dt>range</dt>
<dd>An optional range vector; like <code>x</code> in <code>plot.default</code>.</dd>


<dt>plot_start</dt>
<dd>Logical; if <code>TRUE</code>, plots the parametric start only.</dd>


<dt>zero_line</dt>
<dd>Logical; if <code>TRUE</code>, adds a line at <code>y = 0</code>.</dd>


<dt>ptype</dt>
<dd>The kind of plot to make</dd>


<dt>...</dt>
<dd>Passed to plot.default.</dd>

</dl>

plot_helper: Helper function for the plot methods.

Description

Usage

Value

Arguments