App 6 — Classification Explorer

Metal (Eg = 0) vs. Insulator (Eg > 0) · companion to Post 6 · adjust θ₀, θ₁, θ₂ or click "Auto-fit"

Model Parameters

Decision Boundary (ΔEN vs nd)

Metal (true) Insulator (true) Misclassified ring

Sigmoid Output P(metal | x)

Each point plotted at z = θ₀+θ₁ΔEN+θ₂nd vs σ(z). Dashed line = 0.5 threshold.

Confusion Matrix & Metrics

Pred: MetalPred: Insulator
Actual: Metal
Actual: Insulator
Accuracy
Precision
Recall
F1 score