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Observables: Connecting Theory to Observations

The Observables module connects theoretical predictions to observational measurements.

This module handles the transformation from theoretical quantities to observable measurements, accounting for survey-specific effects.

Overview

This module computes survey-specific quantities including selection functions, window functions, and bias parameters that distinguish real observations from idealized theoretical predictions.

This module addresses:

  • Window functions for weak lensing surveys and CMB lensing
  • Galaxy bias modeling and corrections
  • Redshift-space power spectra P(k, μ)

Two Flavors of Observables

cloelib has two types of observable protocols, each serving different purposes:

Tracer Protocol

For photometric observables (angular correlations, weak lensing)

SpectroPower Protocol

For spectroscopic observables (3D clustering, redshift-space distortions)

Next Steps

Ready to compute final statistics with your observables?