pp_pda: PDA projection pursuit strategy.

In ppforest2: Projection Pursuit Oblique Decision Trees and Random Forests

PDA projection pursuit strategy.

Description

Creates a Penalized Discriminant Analysis (PDA) projection pursuit strategy for use with pptr or pprf.

Usage

pp_pda(lambda = 0)

Arguments

lambda

A regularization parameter between 0 and 1. If lambda = 0, the model uses Linear Discriminant Analysis (LDA). If lambda > 0, the model uses Penalized Discriminant Analysis (PDA).

Value

A pp_strategy object.

See Also

pptr, pprf, vars_uniform, vars_all, cutpoint_mean_of_means

Examples

# PDA with lambda = 0.5
pp_pda(0.5)

# Use with pptr
pptr(Species ~ ., data = iris, pp = pp_pda(0.5))

# Use with pprf
pprf(Species ~ ., data = iris, pp = pp_pda(0.5), vars = vars_uniform(n_vars = 2))

ppforest2 documentation built on July 21, 2026, 9:07 a.m.