detectbound

Manual detection of bounds of parameter of a density function/

 distribution

Extends the fitdistr() function (of the MASS package) with several functions
to help the fit of a parametric distribution to non-censored or censored data.
Censored data may contain left censored, right censored and interval censored values,
with several lower and upper bounds. In addition to maximum likelihood estimation (MLE),
the package provides moment matching (MME), quantile matching (QME), maximum goodness-of-fit
estimation (MGE) and maximum spacing estimation (MSE) methods (available only for
non-censored data). Weighted versions of MLE, MME, QME and MSE are available. See e.g.
Casella & Berger (2002), Statistical inference, Pacific Grove, for a general introduction
to parametric estimation.

Aurélie Siberchicot

fitdistrplus

Help to Fit of a Parametric Distribution to Non-Censored or
Censored Data

Marie-Laure Delignette-Muller

Christophe Dutang

Regis Pouillot

Jean-Baptiste Denis

detectbound function

<dl><dt>distname</dt>
<dd>A character string <code>"name"</code> naming a distribution 
 for which the corresponding density function <code>dname</code> 
 must be classically defined.</dd><dt>vstart</dt>
<dd>A named vector giving the initial values of parameters 
 of the named distribution.</dd><dt>obs</dt>
<dd>A numeric vector for non censored data.</dd><dt>fix.arg</dt>
<dd>An optional named vector giving the values of fixed parameters of the named distribution. Default to <code>NULL</code>.</dd><dt>echo</dt>
<dd>A logical to show some traces.</dd>
 
</dl>

Arguments

Christophe Dutang and Marie-Laure Delignette-Muller.

Author

Detect bounds for density function — detectbound

<dl>

<dt>distname</dt>
<dd>A character string <code>"name"</code> naming a distribution 
 for which the corresponding density function <code>dname</code> 
 must be classically defined.</dd>

<dt>vstart</dt>
<dd>A named vector giving the initial values of parameters 
 of the named distribution.</dd>

<dt>obs</dt>
<dd>A numeric vector for non censored data.</dd>

<dt>fix.arg</dt>
<dd>An optional named vector giving the values of fixed parameters of the named distribution. Default to <code>NULL</code>.</dd>

<dt>echo</dt>
<dd>A logical to show some traces.</dd>
 
</dl>

detectbound: Detect bounds for density function

Description

Usage

Value

Arguments

Author

Details

References

See Also

Examples