lasso_obj {tramnet}

Lasso objective function for model based optimization

Description

This function generates an objective function for model-based optimization based on the cross-validated log-likelihood of a tramnet model with a lasso penalty only. It is not intended to be called by the user directly, instead it will be given as an argument to mbo_tramnet.

Usage

lasso_obj(object, minlambda = 0, maxlambda = 16, folds,
  noisy = FALSE, fold)

Arguments

object

object of class tramnet

minlambda

minimum value for lambda (default: 0)

maxlambda

maximum value for lambda (default: 16)

folds

self specified folds for cross validation (mainly for reproducibility and comparability purposes)

noisy

indicates whether folds for k-fold cross-validation should be random for each iteration, leading to a noisy objective function (default: FALSE)

fold

fold for cross validation

Value

Single objective function for model based optimization.