FDA-Oriented SelectBoost Wrapper

Wraps SelectBoost::fastboost() or SelectBoost::autoboost() while adding FDA-specific structure through block-aware and region-aware grouping.

Usage

selectboost_fda(
  x,
  y = NULL,
  mode = c("fast", "auto"),
  selector = "msgps",
  selector_fun = NULL,
  selector_args = list(),
  groups = NULL,
  family = c("gaussian", "binomial"),
  association = NULL,
  group_method = c("threshold", "community"),
  association_method = c("correlation", "neighborhood", "hybrid", "interval"),
  within_blocks = TRUE,
  bandwidth = NULL,
  interval_groups = NULL,
  width = NULL,
  step = width,
  decay = 1,
  ...
)

Arguments

x

Any input accepted by as_functional_matrix(), or an fda_design object.

y

Response vector. Leave as NULL when x is an fda_design.

mode

"fast" for a fixed c0 grid or "auto" for the adaptive version.

selector

Base selector used inside SelectBoost. Choose from "msgps", "lasso", "group_lasso", "sparse_group_lasso", the backend-specific aliases "glmnet", "grpreg", "sgl", or provide a custom function.

selector_fun

Optional custom base selector. It must return a coefficient vector of length p.

selector_args

Optional named list of arguments forwarded to the base selector.

groups

Optional feature groups used by grouped base selectors such as "grpreg". Defaults to block-level groups for list inputs.

family

Model family passed to built-in selectors.

association

Optional custom association matrix used to define FDA-aware groups.

group_method

Functional grouping backend: threshold-based or community-based.

association_method

Association structure used to build FDA-aware groups.

within_blocks

Should SelectBoost groups stay within functional blocks?

bandwidth

Optional maximum within-block lag retained in groups.

interval_groups, width, step, decay

Additional arguments passed to make_functional_grouping_function().

...

Additional arguments passed to SelectBoost::fastboost() or SelectBoost::autoboost().

Value

An object of class selectboost_fda_result.