Forecasting#

Task-oriented examples for forecasting workflows, including Fisher matrices, DALI expansions, and Laplace approximations.

For end-to-end workflows and larger examples, see the derivkit-demos repository.

Fisher

Standard Fisher matrix forecasts from model derivatives.

Fisher bias

Parameter biases from systematic model mismatch.

DALI

Higher-order likelihood expansions beyond Fisher.

Fisher contours

Visualize Fisher-Gaussian posteriors with GetDist.

DALI contours

Visualize DALI-expanded posteriors with GetDist.

Laplace approximation

Gaussian approximation around a posterior peak.

Laplace contours

Visualize Laplace-approximated posteriors with GetDist.

Gaussian Fisher

Fisher matrix including parameter-dependent covariance.

X–Y Gaussian Fisher

Fisher forecasts with uncertainty in both inputs and outputs.