powfun8

Variance function estimation for models proposed by W. Sadler in his variance function program
('VFP', www.aacb.asn.au/AACB/Resources/Variance-Function-Program). Here, the idea is
to fit multiple variance functions to a data set and consequently assess which function reflects
the relationship 'Var ~ Mean' best. For 'in-vitro diagnostic' ('IVD') assays modeling this relationship
is of great importance when individual test-results are used for defining follow-up treatment of patients.

Andre Schuetzenmeister

Variance Function Program

Florian Dufey

Andrea Geistanger

powfun8 function

<dl><dt>x</dt>
<dd>(numeric) parameter 1</dd>
<dt>C</dt>
<dd>(numeric) parameter 2</dd>
<dt>signJ</dt>
<dd>(numeric) parameter 3</dd></dl>

Arguments

Internal Function Model 8. — powfun8

<dl>

<dt>x</dt>
<dd>(numeric) parameter 1</dd>


<dt>C</dt>
<dd>(numeric) parameter 2</dd>


<dt>signJ</dt>
<dd>(numeric) parameter 3</dd>

</dl>

powfun8: Internal Function Model 8.

Description

Usage

Arguments