dpenaltyfunction function

First derivative of the penalty function.

This function implements the first derivative of the penalty function.

dpenaltyfunction(psv, beta)

Arguments

• psv: penalty structure vector.
• beta: estimated regression effects.

Details

This function implements the first derivative of the penalty function with respect to the penalty. The term 'penalty function' is described in detail on p. 4 in Oelker, Tutz (2013): A General Family of Penalties for Combining Differing Types of Penalties in Generalized Structured Models.

Returns

Value of the first derivative of the penalty function (note: this is always 1, since the penalty fucntion p(xi)=xi is just the identity).

Author(s)

Holger Reulen

Examples

## Not run: dpenaltyfunction(psv, beta)