//! Data-driven control design methods.
//!
//! Provides algorithms that tune controllers directly from experimental
//! input/output data, without requiring an explicit plant model:
//!
//! - [`vrft`]: Virtual Reference Feedback Tuning (VRFT) — Campi & Savaresi 2002.
//! - [`correlation_tuning`]: Correlation-Based Tuning (CbT) — Karimi et al.
//! - [`frit`]: Fictitious Reference Iterative Tuning (FRIT) — Soma et al.
pub use CorrelationTuner;
pub use FritTuner;
pub use ;