bt.coef {VFP} | R Documentation |
Back-Transformation of Estimated Coefficients.
Description
This function performs back-transformation from re-parameterized forms in the 'VFP'-package into the original form.
Usage
bt.coef(object, K = NULL, signJ = NULL, model = NULL, ...)
Arguments
object |
(object) of class 'gnm' representing a fitted model in re-parameterized form |
K |
(numeric) constant value 'K' |
signJ |
(integer) either 1 or -1 |
model |
(integer) specifying which model shall be back-transformed |
... |
additional parameters |
Details
In the 'VFP' package models are re-parameterized to have better control over the constraint solution-space, i.e. only models may be fitted generating non-negative fitted values. This function is intended to be for internal use only.
Value
(numeric) vector of coefficients in original parameterized form
Author(s)
Andre Schuetzenmeister andre.schuetzenmeister@roche.com Florian Dufey florian.dufey@roche.com
[Package VFP version 1.4.1 Index]