Returns the density for a vector of x.

A Davidian curve defines a seminonparametric density, whose shape and flexibility can be tuned by
easy to estimate parameters. Since a special case of a Davidian curve is the standard normal density,
Davidian curves can be used for relaxing normality assumption in statistical applications (Zhang & Davidian, 2001)
<doi:10.1111/j.0006-341X.2001.00795.x>. This package provides the density function, the gradient of
the loglikelihood and a random generator for Davidian curves.

Ozan Öğreden

dcurver

Utility Functions for Davidian Curves

ddc function

<dl><dt>x</dt>
<dd>vector of quantiles.</dd>
<dt>phi</dt>
<dd>Davidian curve parameters.
A maximum of 10 parameters is allowed.</dd></dl>

Arguments

Density function for univariate Davidian curves — ddc

<dl>

<dt>x</dt>
<dd>vector of quantiles.</dd>


<dt>phi</dt>
<dd>Davidian curve parameters.
A maximum of 10 parameters is allowed.</dd>

</dl>

ddc: Density function for univariate Davidian curves

Description

Usage

Arguments

Examples