use incremental_rs::{
BatchStats, IncrementalLinearRegression, IncrementalSupervisedEstimator,
LearningRateSchedule, MonitoredEstimator,
};
use ndarray::{array, Array2};
fn main() {
println!("===Batch vs. Incremental Convergence Comparison ===");
let x = Array2::from_shape_vec(
(8, 2),
vec![
1.0, 2.0, 2.0, 1.0, 3.0, 4.0, 5.0, 2.0, 4.0, 1.0, 6.0, 3.0, 7.0, 2.0, 8.0, 5.0,
],
)
.unwrap();
let y = array![-3.5, 1.5, -5.5, 4.5, 5.5, 3.5, 8.5, 1.5];
let schedule = LearningRateSchedule::InverseScaling {
initial_rate: 0.05,
decay: 0.01,
power: 0.5,
};
let mut model = IncrementalLinearRegression::new(schedule, 0.01);
println!("Step | Mini-Batch MSE Loss");
println!("--------------------------");
let mut monitored = MonitoredEstimator::new(&mut model, |stats: BatchStats| {
println!("{:4} | {:.6}", stats.step, stats.loss);
});
for _ in 0..10 {
monitored.partial_fit(&x, &y).unwrap();
}
}