feat: add constant prediction null model to diagnostics #120
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- compute mse over time for constant prediction baseline: x(t) = x(0) - efficient implementation: accumulates per-timestep without large arrays - update plot_long_rollout_mse to accept dict of null model traces - plot null models as dashed lines alongside trained model performance this provides a simple baseline to evaluate how much better the trained model performs compared to just predicting the initial state. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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this provides a simple baseline to evaluate how much better the trained model performs compared to just predicting the initial state.
🤖 Generated with Claude Code