varycoef (version 0.3.0)

Lq: \(L^q\) Norm Penalty

Description

Penalty function using the \(L^q\) norm, i.e., \(p_{\lambda}(x) = \lambda \| x\|^q\).

Usage

Lq(x, lambda = 1, q = 1)

Arguments

x

numeric.

lambda

non-negative scalar, shrinkage parameter.

q

non-negative scalar, norm parameter.

Value

penalty for values of x.

Examples

# NOT RUN {
Lq(-5:5)
curve(Lq(x, q = 2), from = -5, to = 5)
# }