aic.penalty {not}

Akaike Information Criterion penalty

Description

The function evaluates the penalty term for Akaike Information Criterion. This routine is typically not called directly by the user; its name can be passed as an argument to features.

Usage

aic.penalty(n, n.param, ...)

Arguments

n

The number of observations.

n.param

The number of parameters in the model for which the penalty is evaluated.

...

Not in use.

Value

The penalty term 2 \times \code{n.param}.

References

R. Baranowski, Y. Chen, and P. Fryzlewicz (2019). Narrowest-Over-Threshold Change-Point Detection. (http://stats.lse.ac.uk/fryzlewicz/not/not.pdf)

Examples

#*** a simple example how to use the AIC penalty
x <- rnorm(300) + c(rep(1,50),rep(0,250))
w <- not(x)
w.cpt <- features(w, penalty="aic")
w.cpt$cpt[[1]]