# Frequency

> What repeats, and how often?

Record: `reason:lens-frequency`
Kind: lens
Canonical: https://banes-lab.com/ontology/reasoning#reason-lens-frequency

## detected-by

- [Cross-Class Pattern Detection](https://banes-lab.com/records/algo/cross-class-pattern-detection.md)

## math-fields

- harmonic-analysis

## test-surfaces

- [observability-correctness](https://banes-lab.com/records/reason/test-surface-observability-correctness.md)

## universal-axis

- [dynamics](https://banes-lab.com/records/reason/universal-axis-dynamics.md)

## referenced-by

- [Ana Frequency](https://banes-lab.com/records/reason/node-ana-frequency.md)
- [Observability Correctness](https://banes-lab.com/records/reason/test-surface-observability-correctness.md)
- [Dynamics](https://banes-lab.com/records/reason/universal-axis-dynamics.md)