x2pars

This function acts as a frontend to estimate an ensemble of parameters from the methods of L-moments (<code>lmr2par</code>), maximum likelihood (MLE, <code>mle2par</code>), and maximum product of spacings (MPS, <code>mps2par</code>). The parameters estimated by the L-moments are used as the initial parameter guesses for the subsequent calls to MLE and MPS.

parameter (L-moments to)

parameter (estimation)

parameter (maximum likelihood to)

parameter (maximum product spacing to)

Extensive functions for Lmoments (LMs) and probability-weighted moments (PWMs),
distribution parameter estimation, LMs for distributions, LM ratio diagrams, multivariate
Lcomoments, and asymmetric (asy) trimmed LMs (TLMs). Maximum likelihood and
maximum product spacings estimation are available. Right-tail and left-tail LM censoring
by threshold or indicator variable are available. LMs of residual (resid) and reversed
(rev) residual life are implemented along with 13 quantile operators for reliability analyses.
Exact analytical bootstrap estimates of order statistics, LMs, and LM var-covars are available.
Harri-Coble Tau34-squared Normality Test is available. Distributions with L, TL, and added
(+) support for right-tail censoring (RC) encompass: Asy Exponential (Exp) Power [L],
Asy Triangular [L], Cauchy [TL], Eta-Mu [L], Exp. [L], Gamma [L], Generalized (Gen) Exp
Poisson [L], Gen Extreme Value [L], Gen Lambda [L, TL], Gen Logistic [L], Gen Normal [L],
Gen Pareto [L+RC, TL], Govindarajulu [L], Gumbel [L], Kappa [L], Kappa-Mu [L],
Kumaraswamy [L], Laplace [L], Linear Mean Residual Quantile Function [L], Normal [L],
3p log-Normal [L], Pearson Type III [L], Polynomial Density-Quantile 3 and 4 [L],
Rayleigh [L], Rev-Gumbel [L+RC], Rice [L], Singh Maddala [L], Slash [TL], 3p Student t [L],
Truncated Exponential [L], Wakeby [L], and Weibull [L].

William Asquith

lmomco

L-Moments, Censored L-Moments, Trimmed L-Moments, L-Comoments,
and Many Distributions

x2pars function

<dl> <dt>x</dt>
<dd>A vector of data values.</dd> <dt>verbose</dt>
<dd>A logical to control a sequential message ahead of each method.</dd> <dt>...</dt>
<dd>The additional arguments, if ever used.</dd></dl>

Arguments

Author

Estimate an Ensemble of Parameters from Three Different Methods — x2pars

<dl>

 <dt>x</dt>
<dd>A vector of data values.</dd>

 <dt>verbose</dt>
<dd>A logical to control a sequential message ahead of each method.</dd>

 <dt>...</dt>
<dd>The additional arguments, if ever used.</dd>

</dl>

x2pars: Estimate an Ensemble of Parameters from Three Different Methods

Description

Usage

Value

Arguments

Author

See Also